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A Child Living with a Pacemaker or Implantable Cardioverter Defibrillator (ICD)
Detailed information on living with a pacemaker or implantable cardioverter defibrillator
A Child's Concept of Death
From babies to teens, a look at how children understand death.
A Child's First Dental Visit Fact Sheet
You can take your child at a younger age, but experts recommend taking your child by about 12 months at the latest. The dentist can provide or recommend preventative information regarding baby bottle tooth decay, infant feeding practices, mouth cleaning, teething, pacifier habits, and finger-sucking. habits.
A Common Plastic Comes Under Scrutiny
Polycarbonate plastic is durable, impact-resistant, and clear. It is widely used in food and drink containers, but research has raised concerns over its health effects.
A Fruity Way to End the Meal
Naval oranges, ripe strawberries, and sliced bananas are served with a yogurt-ginger sauce.
A Guide to Common Medicinal Herbs
Here are some common medicinal herbs. Most herbs have not been completely tested to see how well they work or to see if they interact with other herbs, supplements, medicines, or foods.
A Healthy Diet: Your First Line of Defense Against Disease
A healthy diet lays the foundation for your overall well-being. And heart-healthy fruits and vegetables—between to 2 to 3 cups of vegetables and 1.5 to 2 cups of fruit each day—are the cornerstone.
A Kids' Asthma Journal
Do you want to gain better control over your asthma? Put it in writing!
A Quick Look at Reflexes
What happens when your healthcare provider taps on your knee with a rubber mallet? Your leg kicks forward, seemingly on its own. And in a sense, your leg has a mind of its own — in your spinal cord.
A Red Face Could Mean Rosacea
Rosacea is a long-term (chronic) skin condition. It can cause facial redness, bumps, pimples, and thick skin.
A Rotation That Starts at the Waist
This back exercise improves strength and flexibility of your spine. Start by sitting in a sturdy chair, with your feet flat on the floor.
A Safer Way to Get Out of Bed
Something as simple as getting out of bed correctly can help to ease strain on your back and prevent injury.
A Safety Checklist for Parents
You can help keep your children safe by following these precautions.
A Sample Walking Program
Experts advise walking briskly at least 30 minutes per day, most days of the week. This walking programs can help you reach that goal by slowly increasing the frequency and time you walk.
A Serious Look at Fainting
Fainting (syncope) is a brief loss of consciousness. This leads to falling down or needing to lie down, followed by a quick recovery. Fainting by itself is not a problem, but it could be a sign of a serious health condition.
A Simple Way to Keep the Flu Away
You can prevent the flu this season by taking 1 simple step: Get a flu shot.
A Thanksgiving Menu Tune-Up
Read on for helpful tips to create a healthier, lighter, but still festive meal for Thanksgiving Day. The biggest change: If you don't need to present the whole turkey for carving at the table, cook a turkey breast instead.
A Vocabulary for Sleep
Details about common sleep disorders.
A Walking Program for Peripheral Arterial Disease (PAD)
When you have PAD, a walking program can be very helpful. Here are some tips to get you started.
A Woman's Guide to Beating Heart Disease
Surveys show fewer than one in 10 women perceive heart disease as their greatest health threat. But it's the nation's number one killer, and women are its prime target.
A1C
A1C is a blood test used to screen people to find out whether they have diabetes or prediabetes.
Abdominal Angiogram
An angiogram is a type of imaging test. It uses X-rays to look at your blood vessels. An abdominal angiogram looks at the blood vessels in your belly (abdomen). Read on to learn why it's done and what to expect before, during, and after this test.
Abdominal Aortic Aneurysm
Detailed information on abdominal aortic aneurysms, including description of abdominal aortic aneurysm, causes, symptoms, diagnosis, treatment, and full-color anatomical and procedure illustrations
Abdominal Aortic Aneurysm Repair
Abdominal aortic aneurysm (AAA) repair is done to treat an aneurysm. An aneurysm is a bulging, weak spot in the aorta that may be at risk for rupturing. In this case, the aneurysm is in part of the aorta that is in the abdomen.
Abdominal Pain
Abdominal pain is pain in the stomach or belly area. Everyone has this pain from time to time. In many cases it goes away on its own. But abdominal pain can sometimes be due to a serious problem, such as appendicitis. So it's important to know when to get help.
Abdominal Pain in Children
Abdominal pain is very common in children, and in many cases there's no serious cause. But stomach pain can sometimes point to a serious problem, such as appendicitis, so it is important to know when to seek help.
Abdominal Ultrasound
An abdominal ultrasound is an imaging test used to assess the organs and structures in the belly. Read on to learn what to expect before, during, and after the test.
Abdominal Ultrasound
Abdominal ultrasound is an imaging test that uses sound waves to form pictures of your abdominal organs. It can help detect organ problems, such as gallstones, kidney stones, or liver disease.
Abdominal X-ray
An abdominal X-ray may be done to check the area for causes of belly pain. It can also be done to find an object that has been swallowed or to look for a blockage or a hole in the intestine. Read on to learn what to expect before, during, and after this imaging test.
Abdominoplasty (Tummy Tuck)
During a tummy tuck, the surgeon removes excess fat and skin from your belly.
Abdominoplasty with Liposuction
Abdominoplasty or tummy tuck can be done with liposuction to help remove excess fat and tighten up muscles and skin of the belly.
Ability to Concentrate Isn't What It Used to Be
With today's world filled with so much stimulation, quick news reports, and fast-food restaurants on every corner, are we capable of concentrating as well as we used to?
About Arthritis and Other Rheumatic Diseases
Arthritis is a category of rheumatic diseases. Read on to learn more about these conditions and the types of health care providers who treat them.
About Cancer
Detailed information on cancer in children, including causes, diagnosis, treatment, and coping
About Clinical Trials: Information from the National Cancer Institute
Clinical trials are studies managed by government agencies, educational institutions, private not-for-profit organizations, or commercial businesses. They develop and evaluate the effectiveness of new treatments and therapies for diseases.
About Poison Control Centers
Poison control centers are always open - 24 hours a day, 7 days a week, 365 days a year. They're staffed by pharmacists, healthcare providers, nurses, and other experts who are available by phone.
About Sanitary Pads and Tampons
During your period, pads and tampons absorb the flow and protect your clothes from stains. They come in many styles. Some absorb more than others. To learn how to use them, read the package instructions and check with an adult.
About the Heart and Blood Vessels
Detailed anatomical description of the heart's blood vessels, including simple definitions and a labeled, full-color illustration.
About Your Asthma Action Plan
Your Asthma Action Plan includes information about your symptoms and medicines. It also includes instructions about managing your asthma symptoms and when to call your healthcare provider.
About Your Child's Asthma Action Plan
The Asthma Action Plan includes information about your child's symptoms and medicines. It also includes directions about managing your child’s symptoms and when to call their doctor.
Abrasions
An abrasion is a superficial rub or wearing off of the skin, usually caused by a scrape or a brush burn. Abrasions are usually minor injuries that can be treated at home.
Abscess Drainage
An abscess is a pocket of pus that forms around an infection. Pus is a fluid made up of germs (bacteria), white blood cells, and other matter. Draining pus from an infected area or organ inside the body may be needed. This helps heal the infection.
Absence Seizures
Absence seizures are a type of epilepsy that most often occur in children. Read on for details about this condition.
Abuse of Prescription ADHD Medicines Rising on College Campuses
Around the country, more and more college students are abusing stimulants to help them study. Here's how to spot the signs of medicine use and keep your student safe.
AC Arthritis (Acromioclavicular Arthritis)
Arthritis is a type of damage to a joint that can cause inflammation. AC arthritis affects the acromioclavicular (AC) joint. This joins the shoulder blade (scapula) and the collarbone (clavicle). AC arthritis is fairly common in older adults.
Acetaminophen Drug Level
The acetaminophen drug level is a blood test used to screen for the presence of the common pain reliever acetaminophen.
Acetylcholine Receptor Antibody (Blood)
This test measures the concentration of an antibody in your blood that may mean you have the autoimmune disease myasthenia gravis.
Achalasia
Achalasia is a disease that makes it hard to eat and drink normally. It affects your esophagus, which is the swallowing tube that connects the back of your throat to your stomach.
Achalasia in Children
Achalasia is a rare disease that makes it hard to swallow food and liquids. In achalasia, there is a problem with the tube that carries food from the mouth to the stomach (esophagus).
Achilles Tendon Injuries
Achilles tendon injuries affect the Achilles tendon, a fibrous band of tissue that links the muscles in your calf to your heel. The strength and flexibility of this tendon are important for jumping, running, and walking.
Achilles Tendon Repair Surgery
Achilles tendon repair surgery is a type of surgery to fix a damaged Achilles tendon. This is the strong, fibrous cord in the lower leg that connects the muscles of your calf to your heel. It's the largest tendon in your body.
Achondroplasia in Children
Achondroplasia is a group of rare genetic (inherited) bone disorders. Achondroplasia is the most common type of what was once called dwarfism, in which the child's arms and legs are short in proportion to body length.
Acid Reflux (GERD) Risk Assessment
Most people get an occasional bout of heartburn—that burning feeling in the chest about a half-hour after eating. But if you get it often, you may have GERD.
Acid-Fast Bacteria Culture
This test is done to find out if you have tuberculosis. Your doctor might order this test if you have a lung infection or symptoms of TB.
ACL Rehabilitation: Stationary Bike
After you regain muscle control, it’s time to build strength. This improves your ability to put your full weight on your leg. For best results, warm up and stretch before starting. If your injury is recent, wait until swelling and pain decrease before doing this exercise.
Acne
Acne affects teens and adults of all ages. It happens when oil secreted by sebaceous glands clogs the hair follicle. Bacteria infect the clogged follicle and cause pimples.
Acne in Children
Acne is a disorder of the hair follicles and sebaceous glands. Hair follicles are the areas around the base or root of each hair. Sebaceous glands are the tiny glands that release oil (sebum) into the hair follicles. The sebum moistens the skin and hair. The sebum and hair get to the skin surface through tiny holes called pores.
Acne Quiz
Learn about acne with this multiple-choice quiz. You'll learn, for example, which factors promote blackheads.
Acne Scar Removal
Detailed information on different methods for acne scar removal. These include dermabrasion, chemical peels, collagen injections, laser resurfacing, punch grafts, and autologous fat transfer.
Acoustic Neuroma
Acoustic neuroma is a rare noncancer tumor. It affects hearing and balance when the tumor presses on the nerves in the inner ear.
Acquired Brown Syndrome (Superior Oblique Tendon Sheath Syndrome)
Brown syndrome is a problem with a tendon that attaches to the eyeball. In Brown syndrome, this tendon can’t move freely. This limits the eye’s normal movement. Brown syndrome is a rare disorder. It is usually present at birth (congenital). In some cases, it occurs later in life (acquired).
Acquired Hemophagocytic Lymphohistiocytosis (HLH)
If you have hemophagocytic lymphohistiocytosis, your immune system does not work normally. Certain white blood cells - histiocytes and lymphocytes - attack your other blood cells. These abnormal blood cells accumulate in your spleen and liver, causing these organs to enlarge.
Acquired Hypothyroidism in Children
Hypothyroidism is when the thyroid gland doesn't make enough thyroid hormone. The condition is more common in adults. But it’s the most common thyroid disorder in children. Not enough thyroid hormone leads to signs, such as slow growth, lack of activity, and poor performance in school.
Acromegaly
Acromegaly is abnormal growth that occurs when an adult's pituitary gland makes too much growth hormone. The abnormal growth starts in your hands and feet, as soft tissue begins to swell. This rare disease affects mostly middle-aged people.
Act to Prevent Cervical Cancer
Every year, providers diagnose about 13,000 new cases of cervical cancer. And it’s estimated that the disease claims approximately 4,000 lives annually. Yet when it’s caught early enough, cervical cancer is highly treatable.
ACTH (Blood)
This blood test measures the amount of adrenocorticotripic hormone (ACTH) the pituitary gland produces.
Actinic Keratosis
Detailed information on actinic keratosis, including causes and treatment.
Activated Coagulation Time
ACT is a blood test that measures how long it takes your blood to clot.
Activated Partial Thromboplastin Clotting Time
This test clocks the amount of time it takes for your blood to form a clot. You may need this test if your healthcare provider believes that you have a bleeding disorder.
Activity and ACL Rehabilitation
Once you are ready for it, your healthcare provider will help you ease back into your active life. You can do certain exercises to help you build up your agility. Agility is ease and quickness of movement.
Activity and ACL Rehabilitation
Once you are ready for it, your healthcare provider will help you ease back into your active life. You can do certain exercises to help you build up your agility. Agility is ease and quickness of movement.
Activity Quiz
Ready to start exercising, but don't know where to start? This quiz can get you off on the right foot.
Acupuncture
Acupuncture is the practice of putting thin needles into the skin at certain parts of the body. It's done to ease symptoms linked to many diseases. Read on to learn more.
Acute Bacterial Rhinosinusitis
Acute bacterial rhinosinusitis (ABRS) is an infection of both your nasal cavity and sinuses. It's caused by bacteria. Here's what you need to know about this condition.
Acute Bronchitis
There are several different types of bronchitis. But the most common are acute and chronic. Acute bronchitis may also be called a chest cold.
Acute Bronchitis in Children
Bronchitis is an inflammation of the large breathing tubes (bronchi) in the lungs. Short-term (acute) bronchitis means that the symptoms often develop quickly and don't last long.
Acute Fatty Liver of Pregnancy
AFLP is a rare, but serious, liver problem in pregnancy. With AFLP the liver cells have too much fat, which can damage the liver.
Acute Flaccid Myelitis in Children
AFM is a rare condition that affects the nervous system.
Acute Liver Failure
Acute liver failure is when your liver suddenly starts to not work. This often happens right after an overdose of medicine or poisoning.
Acute Lymphocytic Leukemia (ALL): Chemotherapy
Chemo is the main treatment for nearly all people with acute lymphocytic leukemia.
Acute Lymphocytic Leukemia (ALL): Diagnosis
If your healthcare provider thinks you might have ALL, you will need certain exams and tests to confirm your diagnosis.
Acute Lymphocytic Leukemia (ALL): Introduction
Read on to learn more about acute lymphocytic leukemia (ALL). This type of leukemia starts in very early or premature forms of white blood cells called lymphocytes. These immature cells are called lymphoblasts, or just blasts. As the blasts grow, they can crowd out the normal cells in the bone marrow.
Acute Lymphocytic Leukemia (ALL): Newly Diagnosed
Being told you have acute lymphocytic leukemia (ALL) can be scary, and you may have many questions. But you have people on your healthcare team to help.
Acute Lymphocytic Leukemia (ALL): Overview
Leukemia is cancer that starts in the bone marrow. When a person has leukemia, the body makes too many abnormal blood cells. Learn more about symptoms, diagnosis, and treatments.
Acute Lymphocytic Leukemia (ALL): Radiation Therapy
Radiation therapy uses high-energy X-rays to kill cancer cells or stop them from growing. It is sometimes used along with chemotherapy (chemo) to treat ALL.
Acute Lymphocytic Leukemia (ALL): Status After Treatment
During and after treatment for acute lymphocytic leukemia, you will have many tests. These tests check your blood and bone marrow for leukemia cells. They are used to see how well treatment is working.
Acute Lymphocytic Leukemia (ALL): Stem Cell Transplant
Your healthcare provider may advise a stem cell transplant for acute lymphocytic leukemia. Read on to learn the details of this procedure.
Acute Lymphocytic Leukemia (ALL): Tests After Diagnosis
After a diagnosis of ALL, you will likely need more tests. These tests help your healthcare providers learn more about the cancer and how to treat it.
Acute Lymphocytic Leukemia (ALL): Treatment Choices
There are many treatment choices for acute lymphocytic leukemia. The best one for you depends on a number of factors.
Acute Lymphocytic Leukemia (ALL): Treatment Questions
Talking with healthcare providers about cancer can be overwhelming. It can be hard to take in all of the information. It helps to be prepared.
Acute Lymphocytic Leukemia: Symptoms
A helpful look at the symptoms of acute lymphocytic leukemia.
Acute Lymphocytic Leukemia: Targeted Therapy
Targeted therapy is the use of medicines that take aim on parts of cancer cells that make them different from healthy cells.
Acute Myeloid Leukemia (AML): Chemotherapy
Chemotherapy is the main treatment for nearly all people with acute myeloid leukemia.
Acute Myeloid Leukemia (AML): Diagnosis
If your healthcare provider thinks you might have AML, you will need certain exams and tests to make sure.
Acute Myeloid Leukemia (AML): Introduction
Leukemia is cancer that starts in the bone marrow, which is where new blood cells are made. The bone marrow is a thick, sponge-like tissue in the center of certain bones. Read on to learn more.
Acute Myeloid Leukemia (AML): Newly Diagnosed
Being told you have acute myeloid leukemia (AML) can be scary, and you may have many questions. But you have people on your healthcare team to help.
Acute Myeloid Leukemia (AML): Status After Treatment
During and after treatment for acute myeloid leukemia (AML), you’ll have tests. These tests are to check your blood and bone marrow for leukemia cells. This helps see how well treatment is working.
Acute Myeloid Leukemia (AML): Stem Cell Transplant
Stem cells are immature cells that live in your bone marrow. They're the starter cells for all types of blood cells. A stem cell transplant uses stem cells to replace bone marrow that contains cancer.
Acute Myeloid Leukemia (AML): Symptoms
Detailed information on acute myelogenous leukemia, including symptoms, diagnosis, and treatment.
Acute Myeloid Leukemia (AML): Tests After Diagnosis
After a diagnosis of acute myeloid leukemia (AML), you will likely need more tests. These tests help your healthcare providers learn more about the leukemia and how to treat it.
Acute Myeloid Leukemia (AML): Treatment Choices
There are many treatment choices for acute myeloid leukemia. The best one for you depends on a number of factors.
Acute Myeloid Leukemia (AML): Treatment Questions
Talking with healthcare providers about cancer can be overwhelming. It can be hard to take in all of the information. It helps to be prepared. Read on for some questions to ask during your appointments.
Acute Myeloid Leukemia: Targeted Therapy
Targeted therapy may be used as the first treatment for acute myeloid leukemia (AML). Or it may be used when chemo is not working.
Acute Pancreatitis
Pancreatitis is inflammation of the pancreas. It can be caused by gallstones, alcohol consumption, and certain medicines, among other causes.
Acute Promyelocytic Leukemia (APL): Treatment
Acute promyelocytic leukemia (APL) is a subtype of acute myeloid leukemia (AML). APL is treated with different medicines than other types of AML.
Acute Respiratory Disorders
Detailed information on acute respiratory disorders in children
Acute Salpingitis
Acute salpingitis is infection of the fallopian tubes. These 2 tubes carry the eggs from the ovary to the uterus. Pelvic pain is the main symptom of acute salpingitis.
Acute Severe Asthma
Asthma can be unpredictable. But it's important to recognize the difference between a minor flare-up and an attack that could be life-threatening. Read on to learn more.
Acute Spinal Cord Injury
A traumatic injury to the spine can cause a bruise, a partial tear, or a complete tear in the spinal cord. Read on for details about causes, symptoms, treatment, prevention, and management.
Acute Spinal Cord Injury (SCI)
Car accidents, falls, and other injuries are a common cause of acute spinal cord injury.
Acute Spinal Cord Injury (SCI) in Children
Acute spinal cord injury (SCI) is when the spinal cord is damaged from an accident or other situation. An SCI may be a bruise (contusion), a partial tear, or a complete tear (transection) in the spinal cord.
Adapting to Age-Related Macular Degeneration
If you have vision loss from macular degeneration, you can continue many of the activities you do now. Vision aids can help you with tasks that need detailed vision. Keep checking your vision and call your eye healthcare provider if you notice any changes.
Adapting to Pregnancy: First Trimester
As your body adjusts, you may have to change or limit your daily activities. You'll need more rest. You may also need to use the energy you have more wisely.
Adapting to Pregnancy: Second Trimester
Keep up the healthy habits you started in your first trimester. You might be a little more tired than normal. So plan your day wisely. Look at the tips below and choose the ones that suit your lifestyle.
Adapting to Pregnancy: Third Trimester
Although common during pregnancy, some discomforts may seem worse in the final weeks. Simple lifestyle changes can help. Take care of yourself. And ask your partner to help out with small tasks.
Add Variety to Your Vegetables
Vegetables offer not only a variety of flavors and textures--they are also packed with nutrients. But many Americans limit their vegetable consumption to just a few types.
Addiction Quiz
Addiction to drugs or alcohol can happen to anyone of any age, social status, race, or income level. Find out more by taking this quiz.
Addiction Recovery: Coping with Relapse
Learn ways to recover from addiction to drugs and alcohol and how to prevent and deal with relapses.
Addiction: Ask Yourself These Questions
Ask yourself the questions contained here. The answers can help you see where you might have problems caused by substance abuse. Then you can decide whether you're ready to do something about your use.
Addiction: Getting Help
Facing your addiction problem takes courage and honesty.And there are many programs and people who can help you.
Addictive Behaviors Outside of Drugs and Alcohol
When you think of addiction, you might think about drugs or alcohol. But there are other kinds of addictions, and all of them involve your health and well-being.
Adding Flavor to Low-Fat Meals
There are endless ways to add more variety and flavor to your diet, without using salt or high-fat ingredients.
Adding to Mother's Milk
Your milk is best, but it's not always complete with the nutritional needs of very small premature babies or some very sick newborns.
Addison Disease in Children
Addison disease is when the adrenal glands don't make enough of 2 steroid hormones. The hormones are cortisol and aldosterone. Cortisol controls the body's metabolism, blocks inflammatory reactions, and affects the immune system. Aldosterone manages sodium and potassium levels. Addison disease is fairly rare and may first appear at any age.
Adenovirus Infection in Children
Adenoviruses are a group of viruses that cause a variety of infections. These include the common cold, conjunctivitis, and croup.
Adenovirus Vaccine: What You Need to Know
Adenoviruses can cause illness that is usually mild, but can be serious in some cases.
ADHD and Your Family
Taking care of a child with ADHD might cause other relationships in the household to suffer. This doesn't have to happen. Each member of the family can help build lasting bonds. That way, life can get better for everyone.
ADHD Quiz
Attention deficit/hyperactivity disorder (ADHD) is a common mental affecting millions of children.
Adjustable Gastric Band: What Happens If You Don’t Follow Your New Diet
Food intolerance means that after surgery you may have problems eating foods that you once ate or that are part of your new diet. This can make it hard to stick to your new diet and keep the pounds off.
Adjusting to Having a Hearing Aid: New Ways to Hear
It's not easy to focus on a conversation when there's a lot of background noise. That's where aural rehab can help. With this training, you'll improve your hearing by learning new listening techniques. Read on to learn more.
Adjusting to Limb Loss
Losing a limb can be a profound shock. Everyone reacts to loss in different ways. You may be feeling angry, frustrated, scared, sad, or lonely. These are very common feelings after limb loss. You may go through distinct stages of grieving. Don’t hesitate to ask for the support that you need. You don’t have to go through this alone.
Adjusting to Wearing a Hearing Aid
A hearing aid is an aid to better hearing. It's not a cure for hearing loss. Learn how to get the most out of your new hearing aid.
Adjusting to Your Tracheostomy Tube
It may take you some time to adjust to your tracheostomy. You may wonder how it will affect your daily life. You will need to make some changes, but you can get used to having a tracheostomy tube ("trach tube"). Your family, friends, and healthcare providers can help.
Adjustment Disorder and Traumatic Brain Injury
Having a traumatic brain injury and getting better after a TBI are life-changing and stressful events. Some people develop a group of symptoms called adjustment disorder after a trauma like a TBI.
Adjustment Disorders in Children
An adjustment disorder is an unhealthy emotional or behavioral reaction to a stressful event or change in a person's life. The response happens within 3 months of the stressful event.
Adolescent (13 to 18 Years)
Detailed information on adolescence, ages 13 to 18 years
Adolescent Growth and Development
Detailed information on adolescent growth and development
Adolescent Health Problems and Injuries
Detailed information on adolescent health problems and injuries, including acne, asthma, breast conditions, breast self-examination, diabetes, eye care, eye safety, gynecological conditions, menstrual conditions, gynecologic problems, pap test, vaginitis, vulvitis, menstrual disorders, amenorrhea, dysmenorrhea, premenstrual syndrome (PMS), high blood pressure, infectious mononucleosis, obesity, oral health, orthodontics, braces, wisdom teeth extraction, periodontal disease, orthopedic problems, osgood schlatter disease, scoliosis, slipped capital femoral epiphysis, sexually transmitted diseases, safer sex guidelines, sports safety, sports injuries, sprains, strains, tennis elbow, mouthguards, heat related illness, heat cramps, heat exhaustion, and heat stroke
Adolescent Mental Health
Detailed information on adolescent mental health disorders, including schizophrenia, mood disorders, major depression, dysthymia, manic depression (bipolar disorder), teen suicide, anxiety disorders, generalized anxiety disorder, obsessive-compulsive disorder, phobia, post-traumatic stress disorder, behavior disorders, attention-deficit/hyperactivity disorder, conduct disorder, oppositional defiant disorder, eating disorders, anorexia nervosa, bulimia nervosa, substance abuse/chemical dependence, and adjustment disorders
Adolescent Problems of the Teeth and Mouth
Detailed information on adolescent problems of the teeth and mouth
Adrenal Cancer: Chemotherapy
Chemotherapy may be used to treat adrenal cancer that has spread too much and can’t be removed with surgery.
Adrenal Cancer: Diagnosis
If your healthcare provider thinks you might have adrenal cancer, you will need certain exams and tests to be sure. Here's what you can expect.
Adrenal Cancer: Introduction
Adrenal cancer is a rare cancer that begins in the adrenal glands. Read on to learn more about the adrenal glands, and types of tumors found there.
Adrenal Cancer: Newly Diagnosed
Being told you have adrenal cancer can be scary, and you may have many questions. But you have people on your healthcare team to help.
Adrenal Cancer: Overview
Adrenal cancer is a rare cancer that starts in the adrenal glands. You have 2 adrenal glands. One sits on top of each kidney. Learn more about symptoms, diagnosis, and treatments.
Adrenal Cancer: Radiation Therapy
Radiation therapy is not often the main treatment for adrenal cancer. But it may be used after surgery to help keep the cancer from returning. It can also be used to treat other body parts where the tumor has spread.
Adrenal Cancer: Stages
The stage of a cancer is how much and how far the cancer has spread in your body. It's one of the most important things to know when deciding how to treat cancer. Learn about the stages of adrenal cancer.
Adrenal Cancer: Surgery
Surgery to remove the adrenal gland is the main treatment for adrenal cancer. It offers the best chance for cure.
Adrenal Cancer: Symptoms
Adrenal cancer symptoms can include muscle cramps, belly or back pain, and headaches. Read on for a full list of symptoms.
Adrenal Cancer: Treatment Choices
There are several treatment choices for adrenal cancer. Which may work best for you? It depends on a few factors.
Adrenal Insufficiency (Addison Disease)
Adrenal insufficiency is a disorder that occurs when the adrenal glands don't make enough of the hormone cortisol. This hormone controls blood pressure and affects how your immune system works.
Adult Acne
Learn about what adult acne is, what causes it, and how it's treated.
Adult CF: Adding Calories for a Healthy Weight
People with cystic fibrosis (CF) may have trouble staying at a healthy weight. You may lose weight even when you get enough calories. Certain things may make it necessary for you to eat a diet high in calories.
Adult CF: Lung Health
If you have cystic fibrosis (CF), you need to work closely with your healthcare team. It will help you stay healthier, feel better, and have a better quality of life.
Adult CF: Maintaining Good Nutrition
CF can affect how your body absorbs nutrients and fats. Good nutrition can help counteract some of these problems. It can also improve your immune system and help fight infection.
Adult CF: The Digestive System
In the digestive system, CF mainly affects the pancreas. The secretions from the pancreas become thick. They then block the ducts within the pancreas.
Adult CF: The Genetics of Cystic Fibrosis
Cystic fibrosis (CF) is a genetic disease. This means that CF is inherited. A person is born with CF only if two CF genes are inherited. You have to get one from your mother and the other from your father.
Adult CF: The Reproductive System
CF does not affect sexual drive or performance, but it may cause a number of symptoms.
Adult CF: The Respiratory System
CF first affects the small airways in the lungs. Over time, it can affect all airways.
Adult CF: Understanding Cystic Fibrosis
CF affects the secretory glands in your body. These are the glands that make mucus and sweat.
Adult Circumcision
Circumcision is a procedure to remove the foreskin, the loose fold of skin that covers the head of the penis. Read on to learn more about adult circumcision and how it's done.
Adult Immunizations Quiz
True or false: Polio vaccines should be kept up-to-date throughout your lifetime.
Adult Lead (Blood)
This test measures the levels of lead in your blood. You may be exposed to lead on your job or through lead-based paint used in your home.
Adult Self-Care for Colds
Colds are caused by viruses. They can't be cured with antibiotics. But you can ease symptoms and help your body's efforts to heal itself. Read on for details.
Adult Tonsillectomy
The tonsils are 2 small masses of tissue at the back of the throat. They are part of the body's immune system, which helps the body fight disease. In some people, the tonsils become infected or enlarged. This can cause severe sore throats, snoring, or other problems. Tonsillectomy is surgery to remove the tonsils.
Adult Vaccine Schedule
Here is a schedule of vaccines recommended for adults. It comes from the CDC National Immunization Program.
Advance Directive Quiz
How important is it to draw up a living will? Take this quiz and find out.
Advance Medical Directive
An advance medical directive is a form that lets you plan ahead for the care you’d want if you could no longer express your wishes. This statement outlines the medical treatment you’d want or names the person you’d wish to make healthcare decisions for you. Be aware that laws vary from state to state, and it may be worthwhile to talk with an attorney.
Advanced Exercises After Knee Replacement Surgery
Exercises after knee replacement surgery are an important part of your recovery.
AEDs- High-Tech Help for Cardiac Arrest
Technology has given us the automated external defibrillator (AED), which is turning up far from hospitals. Some schools and public buildings already have AEDs.
Aerobic Exercise for a Healthy Heart
Exercise is a lot more than an energy booster and a stress reliever. It also strengthens your heart muscle, lowers your blood pressure and blood cholesterol, and burns calories.
Afferent Loop Syndrome
Afferent loop syndrome is a complication of certain types of stomach surgery.
African Sleeping Sickness
African sleeping sickness (African trypanosomiasis) is a disease caused by a parasite. It is passed on by the bite of the infected tsetse fly.
After a Burn: When to Call Your Child's Health Care Provider
Details about when to call your child's health care provider after a burn.
After a Cesarean
It can take time to recover fully after a cesarean. It's important to take care of yourself --both for your own sake and because your new baby needs you.
After a Concussion
Know what to expect after a concussion.
After a Cone Biopsy
A cone biopsy is a quick outpatient surgery used to find and treat a problem in the cervix. It takes less than an hour, and you'll be able to go home the same day.
After a Heart Attack
Over the long-term, your quality of life is tied to how severe your heart attack was and how it was treated. Beyond that, any change will depend largely on you.
After a Hip Fracture: Common Questions
No one plans on having a hip fracture. But a sudden fall or accident can be a life-changing event. You’ll need surgery to repair the fracture, and time for it to heal. It’s normal to have concerns about what to expect at this time. Below are answers to some common questions.
After a Stroke: Getting Ready to Drive Again
Reclaiming the driver’s seat after a stroke can be a daunting prospect. The good news? With support, guidance, and some adaptations, you can still travel the road ahead with confidence.
After a Vaginal Birth
After having a baby, your body may be very tired and it can take time to recover. You may stay in the hospital or birth center from 1 to 4 days. In some cases, you may be able to go home the same day.
After AAA Repair: Treating High Pressure in Your Abdomen
After you have an aortic abdominal aneurysm (AAA) repair, the pressure inside your belly (abdomen) is at risk for increasing. High pressure in your abdomen lowers the blood flow to your organs.
After Abdominal Hysterectomy for Uterine Prolapse
Uterine prolapse occurs when the uterus drops into the vagina. In severe cases, the uterus can protrude from the vagina. The goal of surgery is to correct this problem and relieve your symptoms.
After an Appendectomy
Most people recover quickly after an appendectomy. Here's what you can expect after the surgery.
After Ankle Arthroscopy
After ankle arthroscopy, your joint may be swollen, painful, and stiff. Recovery times can vary. Your surgeon will tell you when to resume activity.
After Back Surgery: Going Home
The sooner you become active, the sooner you’ll get back to your normal routine. Follow these tips to protect your healing back.
After Back Surgery: More Tips for Daily Living
Getting back to your daily routine means taking care to protect your back. These tips can help you.
After Back Surgery: Tips for Daily Living
These tips can help make some tasks easier and will help protect your back after surgery.
After Back Surgery: Your Hospital Recovery
Learn what to expect in the hospital following your back surgery.
After Bariatric Surgery: The First 6 Weeks
Learn what to expect in the first 6 weeks at home after bariatric surgery.
After Bariatric Surgery: The First 6 Weeks
Learn what to expect in the first 6 weeks at home after bariatric surgery.
After Bypass Surgery- Get Plenty of Rest
After coronary bypass surgery, it's important to relax and get plenty of rest.
After Bypass Surgery: Caring for Your Incision
After coronary artery bypass surgery, it's important to care for your incision as it heals.
After Bypass Surgery: Caring for Yourself
You may have many questions in the days following coronary artery bypass surgery. Find out when you can shower and why you need to weigh yourself daily.
After Bypass Surgery: Choosing Activities
As you heal after coronary bypass surgery, it's important to be active but protect your upper body. What activities are safe?
After Bypass Surgery: Driving and Social Activities
After bypass surgery, it's important to get back into the swing, but take it slow.
After Bypass Surgery: Getting Up and Out of Bed
Learn how to get up and out of bed after bypass surgery. This is to help protect your incision and healing breastbone.
After Bypass Surgery: Prevent Swelling in Your Legs
After coronary bypass surgery, it's important to prevent swelling in your legs. Follow these instructions to prevent swelling.
After Bypass Surgery: Reaching, Bending, and Lifting
As your breastbone heals after coronary bypass surgery, it is important to move carefully.
After Bypass Surgery: Visits with Your Healthcare Team
After your artery bypass surgery, expect to have regular follow-up visits with your healthcare team.
After Bypass Surgery: Your Role in Recovery
After coronary bypass surgery, it's important to take an active role in your recovery.
After Carotid Artery Stenting: In the Hospital
After carotid artery stenting, you will most likely stay overnight in the hospital for care and monitoring. Here is what you can expect at the hospital.
After Carotid Artery Surgery: At Home
You'll start feeling back to normal a day or 2 after getting home. But don't forget that you just had surgery. Here is information to speed your recovery.
After Carotid Endarterectomy: In the Hospital
After surgery, you'll be taken to a recovery area. Later, you may be moved to a regular hospital room where you'll stay for 1 or 2 days.
After Cataract Surgery: Long-Term Eye Care
After cataract surgery, it is important to have regular eye exams. This is the best way to check the health of your eyes. It will help you maintain good vision.
After Cleft Lip or Palate Surgery
Your child recently had surgery to help repair their cleft lip or cleft palate or both. As your child recovers, take these steps to help make sure that they heal correctly.
After Coronary Artery Bypass Surgery
Your healthcare provider performed coronary artery bypass graft surgery (also called CABG, pronounced "cabbage"). This surgery created new pathways around blocked parts of your heart's blood vessels, allowing blood to reach your heart muscle. Your healthcare provider used a healthy blood vessel from another part of your body (a graft) to restore blood flow.
After Delivery: When to Call the Health Care Provider
Health problems sometimes arise with you or your baby following delivery. Call 911 or your baby's health care provider or your provider if you see any of these signs.
After Endoscopic Sinus Surgery
Learn what to expect as you recover in the weeks after your endoscopic sinus surgery.
After Endovascular Abdominal Aortic Aneurysm Repair
Tips for home care and when to call your healthcare provider after an abdominal aortic aneurysm repair.
After Gallbladder Surgery
Here's what you need to know about caring for yourself after gallbladder surgery.
After Gastric Bypass: Nutrition Guidelines
After gastric bypass surgery, you will need to learn a new way to eat and drink. Your new stomach pouch is much smaller than it was before. And it has a small opening at the bottom called a stoma. This can become blocked by food if you are not careful. Here are guidelines.
After Giving Birth: Changing Expectations for Parents
Congratulations on your new baby! Diapers won’t be the only thing you’ll change in the months ahead. Your sense of yourself and how you relate to your partner will also be different. If you have other children, expect some emotional swings, as you and your family try out your new roles.
After Giving Birth: Changing Expectations for Parents
Congratulations on your new baby! Diapers won’t be the only thing you’ll change in the months ahead. Your sense of yourself and how you relate to your partner will also be different. If you have other children, expect some emotional swings, as you and your family try out your new roles.
After Giving Birth: How to Feel Healthy
Helping yourself feel fit is one of the best things you can do for your baby. A little exercise will tone your muscles. You’ll feel stronger and more energized. You’ll also feel more awake and aware. Don’t worry about your weight right now. Your goal is to feel healthy. Here are suggestions to help you do so.
After Giving Birth: How to Feel Healthy
Helping yourself feel fit is one of the best things you can do for your baby. A little exercise will tone your muscles. You’ll feel stronger and more energized. You’ll also feel more awake and aware. Don’t worry about your weight right now. Your goal is to feel healthy. Here are suggestions to help you do so.
After Hand Surgery
Instructions on how to take care of your hand after surgery.
After Heart Valve Surgery
For the first 6 to 8 weeks after heart valve surgery, you'll gain a little more energy and strength each day. Your healthcare provider will discuss what you can and can't do as you recover. Here's what you can expect.
After Heart Valve Surgery (Child)
Here's what you need to know following heart valve surgery for your child.
After Heart Valve Surgery: At Home
Here is how to take care of yourself after surgery to fix or replace a heart valve.
After Hernia Surgery
To speed healing after hernia surgery, take an active role in your recovery. These tips can help.
After Hip Replacement- Sitting Safely
Use these tips to help sit safely after hip replacement.
After Hip Replacement: Continuing with Hospital Recovery
Once you have been shown how to protect your hip, you will learn the skills needed to return to normal life. You'll be taught how to walk, sit, and dress.
After Hip Replacement: Home Safety
To make your recovery safer, you might want to have furniture rearranged so it's easier to get around. In the bathroom, aids like a shower hose and a raised toilet seat can help you stay safe. Don't forget to watch out for hazards like wet floors or uneven surfaces.
After Hip Replacement: Managing Your Pain
Take your pain medicine as prescribed to keep pain under control.
After Hip Replacement: Recovering in the Hospital
Here is what to expect in the hospital after a total hip replacement.
After Hip Replacement: Using Your Crutches or Cane
After hip replacement, it's important to learn how to correctly and safely use your crutches or cane.
After Hip Replacement: Using Your Walker
Learn how to use your walker after hip replacement.
After Hip Replacement: When to Call Your Surgeon
It's important to know what symptoms are red flags after hip replacement.
After Hip Replacement: Your Exercise Program Chart
Use this chart to help you with your exercise instructions.
After Hip Surgery- Getting Dressed
After hip replacement, getting dressed can be difficult. These tups can help.
After Hip Surgery- Getting Into and Out of a Car
After hip replacement, getting in and out of a car can be difficult. This sheet can help.
After Hip Surgery- Mastering Daily Tasks
Practice doing these daily tasks after hip replacement surgery.
After Incontinence Surgery: Recovering in the Hospital
When the surgery is done, you'll go to the PACU (postanesthesia care unit). It is also called the recovery room. You'll stay in the PACU until you're fully awake. This is often a few hours. You'll then go to a regular room. Your hospital stay may last from 1 to 3 days.
After Kidney Transplant- Medicines
A successfully transplanted kidney works like a normal kidney to filter your blood. You won't need dialysis. But you will need to take medicines to keep your new kidney healthy.
After Knee Arthroscopy
Learn what to expect after knee arthroscopy.
After Knee Arthroscopy- Physical Therapy
After knee arthroscopy, your surgeon may prescribe physical therapy. This can help relieve pain, increase range of motion, and improve strength.
After Knee Replacement: At Home Exercise Program
After knee replacement, an at-home exercise program can help you return to an active life sooner.
After Knee Replacement: Back at Home
You and your healthcare team will evaluate how well you can care for yourself at home. You may need friends, family, or a home health aide to help with chores and errands.
After Knee Replacement: Controlling Swelling
Swelling is common after total knee replacement, but there are steps you can take to reduce the amount of swelling you experience.
After Knee Replacement: Hospital Recovery
After knee replacement, your healthcare team will help you learn how to sit up, stand, and use the bathroom safely.
After Knee Replacement: Keeping Your Knee Healthy
You can keep your knee healthy by knowing the right moves and staying away from the wrong ones. Some activities may be permanently restricted.
After Knee Replacement: Managing Pain at Home
After knee replacement surgery, it's important to use pain medicine as directed to get back to an active life as soon as possible.
After Knee Replacement: Right After Surgery
Your healthcare team will keep track of your progress after your surgery. Be sure to let them know how you feel and how well your pain is controlled. You may also receive medicines, such as antibiotics and blood thinners.
After Knee Replacement: The First Month
Exercising is the only way to regain your strength and range of motion. With continued exercise, you may gain more strength and range of motion than you had before surgery.
After Knee Replacement: Using a Walker
After knee replacement, you will learn how to use a walker.
After Knee Replacement: Walking With Crutches
As you heal after knee replacement, you may use crutches to help you walk.
After Laparoscopic Appendectomy (Appendix Removal)
You have had a procedure called laparoscopic appendectomy to remove your appendix. Here's what you need to know to take care of yourself at home.
After Laparoscopic Hernia Repair
A hernia is a defect in the tough tissue covering the musculature of the abdominal wall (fascia). During laparoscopic hernia surgery, a surgeon inserts a telescope attached to a camera as well as surgical instruments through tiny incisions in your abdomen. The surgeon repairs the hernia with a mesh, which patches the tear or weakness in the fascia.
After Laparoscopic Hysterectomy for Uterine Prolapse
Uterine prolapse occurs when the uterus drops into the vagina. In severe cases, the uterus may stick out from the vagina. The goal of surgery is to repair the problem and ease your symptoms.
After Laparoscopic Splenectomy
You have had surgery to remove your spleen (splenectomy). This sheet will help you take care of yourself at home.
After Laparoscopic Treatment of Ectopic Pregnancy
Your health care provider did a laparoscopic procedure to treat your ectopic pregnancy. Here are some instructions for caring for yourself when you are at home.
After Leg Amputation: Keeping Your Other Leg Healthy
If you have a leg amputated, it's important to take steps to care for your other leg.
After Minimally Invasive Heart Surgery: At Home
You will need at least 2 to 3 weeks of healing before you can go back to your normal routine. While you are healing, follow your doctor's advice. Call your doctor if you have questions.
After Minimally Invasive Heart Surgery: In the Hospital
After surgery, you'll be moved to a recovery area where you can be closely watched. From there, you may go to a special care unit or a regular room. The hospital stay after minimally invasive heart surgery varies, but is often 5 to 7 days.
After Open Abdominal Aortic Aneurysm Surgery
You have had surgery to repair an abdominal aortic aneurysm. This happens when the main blood vessel in your abdominal area weakens and expands like a balloon. Here's what you need to know following surgery.
After Open-Heart Surgery: In the Hospital
How long you stay in the hospital after open-heart surgery depends on what type of surgery you had and your needs. It may be as short as 3 to 4 days. If you have complications, you may stay in the hospital several weeks or longer.
After Peripheral Artery Bypass Surgery: In the Hospital
After peripheral artery bypass surgery, plan on being in the hospital for about 3 to 8 days. The length of your stay depends on the type of bypass you have, your health, and how you respond to surgery.
After Reverse Total Shoulder Replacement
Reverse total shoulder replacement is a type of surgery. It's done to repair an injury to the rotator cuff. Here's what you need to know about recovering at home.
After Shoulder Replacement Surgery: Back in the Swing
After shoulder replacement, you may also have more strength and movement in your shoulder and arm and be able to return to many of the activities you enjoy - like golf, swimming, bowling, and gardening.
After Shoulder Replacement Surgery: Your Home Recovery
To get the most from your new shoulder, you need to take an active role in your recovery.
After Shoulder Replacement Surgery: Your Hospital Recovery
During your hospital stay, your healthcare team works to control your pain, get you up and walking, and start you on an exercise program to gently move and strengthen your new shoulder.
After Shoulder Surgery (SLAP Repair or Bankart Repair)
After repair of your shoulder joint, you may go home the same day of your surgery. Or you may spend 24 hours in the hospital. Take care of your shoulder while it’s healing and follow all instructions you are given. Full healing usually takes 3 to 4 months.
After Small-Incision Cataract Surgery: The First 24 Hours
Your healthcare provider will let you know what you should and shouldn't do once you get home. You may need to wear eye protection the first day.
After Surgery for Sleep Apnea
Know what to expect after surgery for sleep apnea.
After Surgery: Discomforts and Complications
Detailed information on postoperative discomforts and potential complications, including shock, hemorrhage, wound infection, deep vein thrombosis, pulmonary complications, urinary retention, and reaction to anesthesia.
After Thoracoscopy
Here is what to expect after your procedure. You'll work with a respiratory therapist while you're in the hospital.
After Thyroid Surgery (Thyroidectomy)
Learn how to care for yourself when healing after thyroid surgery.
After Thyroid Surgery (Thyroidectomy)
Learn how to care for yourself when healing after thyroid surgery.
After Tonsillectomy/Adenoidectomy
Your child has had surgery to remove tonsils or adenoids. Your child will need time to get better. Below are guidelines for your child's recovery.
After Total Hip Replacement: Recovering at Home
A total hip replacement is major surgery, so don't be surprised if it takes a few months before you feel really good.
After Total Hip Replacement: Returning to Activity
By having a total hip replacement, you're taking the first step to getting back to an active lifestyle.
After Treatment for a Mouth or Throat Tumor
Treatment for a tumor may change the way you speak, chew, or eat. If so, your care team will show you new ways to do these important tasks. Family, friends, and other people you trust can also help you adjust.
After Tympanostomy (Ear Tubes)
Your child's hearing should improve once the tubes are in place. For best results, follow up as instructed by your child's surgeon. In some cases, ear problems may continue. But you can help prevent ear infections by using good ear care.
After Umbilical Hernia Repair (Child)
During your child's umbilical hernia repair surgery, the health care provider made a small incision and repaired the muscle. Here are some instructions to help you care for your child once at home.
After You Return
Detailed information on health considerations after returning home from traveling abroad
After Your Bypass: Pacing Yourself
After coronary artery bypass surgery, it's important to balance rest with activity.
After Your Child Has Procedural Sedation
Your child will likely be drowsy for a while. They may have a faint memory of the procedure or may not remember it at all.
After Your Child's Inguinal Hernia Repair
Your child had a procedure called inguinal hernia repair. These are instructions for caring for your child following the surgery.
After Your Child's Surgery for Pyloric Stenosis
Pyloric stenosis is a condition that makes it hard for food to move from the stomach into the small intestine. The treatment is surgery called pyloromyotomy. Here's what you need to know about home care following the surgery.
After Your Child’s Ileostomy
Your child has had a procedure called an ileostomy. This surgery affects part of the colon (large intestine) and part of the last section of the ileum (small intestine). Parts of your child's colon and ileum were cut. Parts may have been removed. A small hole called a stoma is made in the abdominal wall and skin. During surgery, the intestine is attached to the skin to allow stool and mucus to pass out of the body. The stool and mucus drain into a holding bag. Below are guidelines for home care after an ileostomy. The healthcare provider and nursing staff may give you other directions for your child.
After Your Mammogram: Understanding Your Results
Your mammogram results will be given a number of 0 through 6. This rating system is known as the Breast Imaging Reporting and Data System (BI-RADS).
After Your Transcatheter Aortic Valve Replacement (TAVR)
Take care after your TAVR procedure. These guidelines can help.
Age 45 or Older? Schedule Your Colorectal Cancer Screening
Cancer of the colon and rectum is the second deadliest cancer among U.S. adults. In recent decades, there has been a sharp rise in colorectal cancer cases among adults younger than age 50.
Age-Appropriate Speech and Hearing Milestones
A helpful look at age-appropriate hearing milestones for babies and toddlers.
Age-Related Hearing Loss (Presbycusis)
Age-related hearing loss (presbycusis) is the slow loss of hearing in both ears. It’s a common problem linked to aging.
Age-Related Macular Degeneration (AMD)
Age-related macular degeneration (AMD) is a disease that affects a person’s central vision. It's the most common cause of severe eyesight loss among people age 50 and older.
Age-Related Macular Degeneration Quiz
Millions of Americans are affected by age-related macular degeneration, a disease that damages the eye's central vision. To learn more about macular degeneration, take this quiz.
Aging and Nutrition Problems
Poor nutrition can make you lose muscle, feel tired and weak, and make it harder for your body to fight infection and heal wounds. Working with your healthcare provider to make sure you get enough nutrients can help you be healthier..
Agoraphobia
A phobia is a fear of something. Generally, agoraphobia is a fear of situations that are hard to escape.
AIDS-Related Cancers
People who have AIDS are much more likely to get certain types of cancer than people without the disease.
AIDS-Related Lymphoma in Children
AIDS-related lymphoma is a type of cancer called non-Hodgkin lymphoma. It grows in some people with AIDS. AIDS is a disease that weakens the immune system. AIDS raises the risk for long-term (chronic) disease, such as cancer.
Air Filters, Dehumidifiers, and Humidifiers
Here are some helpful tips for understanding the air in your house and the air-quality appliances that can alter it.
Air Leaks in the Newborn
In the lungs, air travels through branching airways called bronchial tubes. These end in tiny sacs called alveoli. Sometimes alveoli rupture (break). This causes air to leak into the space between the lungs and the chest wall. These air leaks cause problems with breathing and can lead to lung damage.
Air Pollution
Detailed information on air pollution and air pollution prevention
Air Travel
Detailed information on healthy considerations for air travel, including ways to prevent motion sickness and jet lag
Airway Obstruction Index
Infants and children under age 4 are particularly at risk for choking on food or small objects because their upper airways are smaller, and they tend to explore things with their mouths.
Airway Obstruction—Identifying High-Risk Situations
Choking hazards in the home: round, firm foods, such as grapes and popcorn, and small nonfood items, such as coins, balloons, and marbles.
Airway Obstruction: Prevention
Because most accidental child strangulations, chokings, and suffocations happen in the home, it's important to carefully childproof your residence.
Alagille Syndrome
Alagille syndrome is an inherited condition in which bile builds up in the liver because there are too few bile ducts to drain the bile. This results in liver damage.
Albumin (Blood)
This test measures the amount of the protein albumin in your blood. The test can help diagnose liver and kidney problems.
Albumin (Urine)
This test looks for a protein called albumin in your urine. The test is used to check for kidney damage or disease.
Alcohol Addiction
Here are common signs of an alcohol addiction.
Alcohol and Older Adults
Many older adults enjoy a glass of wine with dinner or a beer while watching the game on TV. But alcohol can affect older adults differently. Here's what you should know.
Alcohol and Pregnancy
Drinking alcohol while pregnant is a leading cause of birth defects in a baby. In addition, the risk for miscarriage and stillbirth increases with alcohol consumption. Read on to learn more.
Alcohol and Your Heart
Alcohol may have some health benefits, including lowering the risk for heart disease, but it may also lead to abusive drinking and other diseases.
Alcohol Septal Ablation
Alcohol septal ablation is a minimally invasive procedure for hypertrophic cardiomyopathy, a condition in which your heart muscle is abnormally thick. The purpose of the procedure is to decrease your symptoms and to reduce future complications.
Alcohol Use and People with Diabetes
Alcohol can lower blood sugar levels to the point of hypoglycemia. Keep careful track of your blood sugar levels when drinking alcohol, because certain diabetes medicines also lower blood glucose levels.
Alcohol Use Assessment
Most adults who drink alcohol are moderate drinkers and are at low risk for alcohol dependence. If you're concerned about drinking use this tool to find out if you have a problem.
Alcohol Use Disorder (AUD)- How to Be Part of the Solution
The best solution for a problem with an alcoholic family member needs changing what the nonalcoholic members are doing. By focusing on your own needs, refusing to enable, and getting help from outside, you can help start your family on the road to recovery.
Alcohol Use Disorder (AUD)- Resources for Family and Friends
Millions of people are significantly affected by somebody's else's drinking, and an immense resource network has developed to help deal with the problem. This network includes self-help groups, professional care facilities and practitioners, and information and referral services.
Alcohol Use Disorder Quiz
Misusing alcohol can lead to serious problems. Learn more about the effects of abusing alcohol by taking this quiz.
Alcohol Use Disorder- Myths and Facts
It's important to cut through alcoholism myths and learn the facts.
Alcohol Withdrawal: What to Expect
Withdrawal is what happens to your body if you're a heavy drinker and stop drinking alcohol. Withdrawal symptoms can be mild to severe. How severe they are depends on how much alcohol you drink, how long you've been abusing alcohol, and if you have organ damage.
Alcohol-Induced Liver Disease
Alcohol-induced liver disease is caused by heavy use of alcohol. The liver's job is to break down alcohol. If you drink more than it can process, it can become badly damaged.
Alcoholic Hepatitis
Alcoholic hepatitis is liver inflammation and damage caused by drinking too much alcohol over time.
Alcoholism and Family History
Genetics can play a part in whether you have problems with alcohol. But many other factors also have an influence. Here's what you should know.
Alcoholism: Getting Help
It's hard to face a problem with alcohol. These resources can help.
Aldosterone and Renin
This blood test measures levels of aldosterone and renin.
Alkaline Phosphatase
This test measures the amount of an enzyme called alkaline phosphatase in your blood. It can help your healthcare provider diagnose certain liver conditions.
All About Allergy
Detailed information on allergy, including symptoms, diagnosis, and treatment
All About Asthma
Asthma is a chronic, inflammatory lung disease with recurrent breathing problems.
All About Blood Pressure Medicine
Several kinds of medicine are commonly prescribed for high blood pressure. Here are some of the main types.
All About Cholesterol Control
Learn how cholesterol affects your health and how lifestyle changes and medicines can help improve your cholesterol levels.
All About Cholesterol-Lowering Medicines
There are 7 main types of cholesterol-lowering medicines.
All About Kidney Stones
A kidney stone is a solid piece of material that forms in the kidney out of substances normally dissolved in the urine.
All About LSD
LSD, also called acid, is one of the most commonly used hallucinogens or psychedelic drugs.
All About Muscle Cramps
Muscle cramps -- involuntary muscle contractions -- are common. But even though they can be quite painful, they don't cause damage.
All About the Stomach
Your stomach's starring role is as an organ essential for digestion. The stomach breaks down all the food you eat.
All Family Time Is Quality Time
Quality time should be woven into our lives. As our children get older and slip away, we need to stop worrying about the extraordinary and think more about the ordinary."
All Red and Ready-to-Go Pizza
Put the flat bread spread with the toppings on a toaster oven tray and use the top brown" setting. It's ready when the cheese bubbles
Allergen: Insect Stings
Detailed information on allergic reactions to insect bites and stings.
Allergens: Animals
Household pets, such as cats and dogs, are the most common sources of animal allergens. Here's what you need to know about symptoms and treatments.
Allergens: Chemical Sensitivity
Idiopathic environmental intolerance (IEI) is a set of symptoms caused by contact with some kinds of substances. Read on to learn more about causes, symptoms, triggers, and treatment.
Allergens: Dust and Dust Mites
Dust mites are microscopic organisms that can live throughout homes and businesses. Read on to learn more.
Allergens: Pollen
Pollen is the most common cause of hay fever. Read on for more information--and helpful tips for reducing the effects of hay fever during pollen season.
Allergens: Triggers of Allergy Attacks
Detailed information on allergy triggers and symptom control
Allergic Bronchopulmonary Aspergillosis
Allergic bronchopulmonary aspergillosis (ABPA) means you are having an allergic reaction to a common fungus called Aspergillus. ABPA causes the lungs to become inflamed. This leads to symptoms, such as wheezing and coughing.
Allergic Rhinitis in Children
Allergic rhinitis can happen on a seasonal basis or year-round. There is often a family history of allergic rhinitis, eczema, asthma, or food allergy. Read on to learn details about treating and managing this condition.
Allergies
Detailed information on allergies in children, including information on allergic rhinitis and food allergies
Allergies and the Immune System
Most allergic reactions are a result of an immune system that responds to a "false alarm."
Allergies in Children
Allergies are problems of the immune system. Most allergic reactions happen when the immune system reacts to a “false alarm.” Normally, the human body defends itself against harmful things, such as viruses or bacteria. But sometimes the defenses violently attack mostly mild things, such as dust, mold, or pollen.
Allergies Quiz
Allergies are nothing to sneeze at. Learn how to better deal with this condition.
Allergy
Detailed information on allergy, including symptoms, diagnosis, and treatment
Allergy Medicines: Over-the-Counter
A detailed look at the different kinds of over-the-counter allergy medicines, and how they work.
Allergy Overview
Allergies are problems of the immune system. Normally the immune system attacks harmful things such as viruses or bacteria. But sometimes it overreacts and responds to things that are normally harmless. These may include dust, mold, pollen, or food.
Allergy Shots (Immunotherapy)
Allergy shots are a type of treatment for allergies. The goal of the treatment is to make your body less sensitive to allergens. Allergens are the substances that cause your allergies.
Alpha Thalassemia
Thalassemia is an inherited blood disorder. It is passed down from one or both parents through their genes. Learn about the4 types of alpha thalassemia, symptoms, treatment options, and more.
Alpha Thalassemia in Children
Alpha thalassemia is an inherited blood disorder. This means it is passed down through the parent’s genes. It causes anemia in affected children. Learn more about symptoms, diagnosis, and treatment.
Alpha-1 Antitrypsin
This test checks to see if a liver disorder or lung disease is caused by a genetic disorder call alpha-1 antitrypsin deficiency.
Alpha-fetoprotein (AFP) Screening Test
Alpha-fetoprotein screening is a blood test that measures the level of AFP in the mother's blood. Abnormal levels may indicate certain problems with the fetus.
Alpha-Fetoprotein (Amniotic Fluid)
This test checks a sample of amniotic fluid to confirm a suspected birth defect called an open neural tube defect in your fetus. Spina bifida is an example of a neural tube defect.
Alpha-Fetoprotein (Maternal Blood)
If you are pregnant, this test looks for a fetal substance called alpha-fetoprotein in your blood. Higher levels of AFP may mean your fetus has a birth defect.
Alpha-Fetoprotein Tumor Marker (Blood)
This test looks for a protein in your blood that may mean that you have liver cancer or one of several other cancers.
ALT
This test measures the amount of a certain enzyme in your blood. High levels are a sign of liver damage.
Alternative and Complementary Medicine Quiz
Many people swear by alternative and complementary therapies. Find out more about these treatments by taking this quiz.
Alternatives to Alcoholics Anonymous
Today there are alternatives to 12-step programs. Some treatment programs teach problem drinkers to reduce their drinking. This approach appeals to people who otherwise might not seek treatment.
Altitude Sickness Quiz
Gazing down on the spectacular view from a mountaintop can take your breath away. That breathlessness is oftentimes more than just an awestruck reaction to the sights. It can be a symptom of altitude sickness, an illness that can strike hikers, mountain climbers, skiers and anyone who hits the 8,000-foot mark on a mountain.
Alzheimer Disease
Alzheimer disease is a disease that affects the brain and nervous system. It is a type of dementia that happens when nerve cells in the brain die.
Alzheimer Disease Quiz
Find out more about this degenerative disease of the brain by taking this quiz.
Amblyopia: Causes and Treatments
In most cases of amblyopia, the brain ignores signals coming from one eye. Over time, the brain gets used to working only with the other eye. So amblyopia must be treated as soon as possible.
Amenorrhea
Amenorrhea means you haven't had your period for more than 3 cycles. It can be caused by a variety of things including overexercising, being overweight, or due to an ovulation problem.
Amenorrhea in Teens
Amenorrhea is when a girl's menstrual bleeding (period) doesn't occur.
Amish Potatoes with Lima Beans
Cubed potatoes are sautéed with onions and lima beans and seasoned with parsley and paprika.
Ammonia
This test checks the amount of ammonia in your blood. Ammonia may build up in your body if you have kidney or liver failure.
Amniocentesis
Amniocentesis is a prenatal test that helps you learn if your baby has genetic problems. Here's what you need to know about this test.
Amniocentesis
Amniocentesis is a procedure used to take out a small sample of the amniotic fluid for testing.
Amphetamine Screen (Blood)
This test measures the amount of a drug called amphetamine in your blood. The test is most often used to screen for drug abuse.
Amphetamine Screen (Urine)
This test detects the presence of amphetamine in your urine. This drug can show up in your urine long after you've taken it.
Ampullary Cancer
Detailed information about causes, symptoms, diagnosis, and treatment of ampullary cancer.
Amputation
An amputation is the surgical removal of all or part of an arm or leg due to infection or injury.
Amylase (Blood)
This test measures the level of the enzyme amylase in your blood. Amylase levels in your blood rise when your pancreas or your salivary glands are inflamed.
Amylase (Urine)
This test is used to find out whether you have pancreatitis or another pancreas-related disorder.
Amyotrophic Lateral Sclerosis (ALS)
Amyotrophic lateral sclerosis is a fatal neurological disorder that causes progressive degeneration of nerve cells in the spinal cord and brain. It is often referred to as Lou Gehrig disease.
An Action Plan for Back Pain
Back pain can be as varied as the sources that cause it. But what do you do when back pain occurs? How do you deal with the pain—and when does it warrant a trip to a healthcare provider?
An Agent's Role for Durable Power of Attorney for Health Care
Often it’s hard to know which medical treatment choices you might face. Would you rather let someone you trust decide for you? A durable power of attorney for health care lets you name an agent to carry out your wishes. This happens only if you can’t express your wishes yourself.
An Early Start to Good Nutrition
With childhood obesity on the rise, should parents worry about the weight of their babies?
Anaerobic Culture
This test looks for certain bacteria in a wound or an infection in a fluid sample. These bacteria are called anaerobic because they don’t need oxygen to grow.
Anal Cancer Overview
The anus is the last part of the digestive tract. Most anal cancers start in the cells that make the inside lining of the anus. Learn more about symptoms, diagnosis, and treatments.
Anal Cancer: Chemotherapy
Chemotherapy (chemo) uses anticancer medicines to kill cancer cells. Learn how chemo is used to treat anal cancer.
Anal Cancer: Diagnosis
If your healthcare provider thinks you might have anal cancer, you will need certain exams and tests to be sure.
Anal Cancer: Early Detection
Screening tests are done to check for diseases in people who don't have symptoms. A digital rectal exam may be used to screen for anal cancer.
Anal Cancer: Introduction
Anal cancer is cancer that starts in the cells of the anus. Learn more about this type of cancer.
Anal Cancer: Newly Diagnosed
Being told you have anal cancer can be scary, and you may have many questions. But you have people on your healthcare team to help.
Anal Cancer: Radiation Therapy
Radiation therapy is one way to treat anal cancer. It uses X-rays to destroy and control the growth of cancer cells.
Anal Cancer: Risk Factors
A risk factor is anything that may increase your chance of having a disease. Learn about the risk factors for anal cancer.
Anal Cancer: Stages
The stage of a cancer is how much and how far the cancer has spread in your body. Learn the stage groupings for anal cancer.
Anal Cancer: Surgery
There are two types of surgery used to treat anal cancer. Learn about these surgeries.
Anal Cancer: Symptoms
Sometimes anal cancer does not cause any symptoms at all. Bleeding from your rectum is the most common symptom of anal cancer.
Anal Cancer: Tests After Diagnosis
After a diagnosis of anal cancer, you'll likely have other tests. Learn which tests you may have.
Anal Cancer: Treatment Choices
Different types of treatment have different goals. Learn about anal cancer treatments and their goals, so you can choose the one that's best for you.
Anal Cancer: Treatment Questions
Here is a list of questions to ask your healthcare provider about treatment for anal cancer.
Anal Fissure
An anal fissure is a small, painful tear in the lining of the anus. Anal fissures may hurt and bleed during or after a bowel movement, but about 90% heal without surgery.
Anal Fistula
An anal fistula is an abnormal opening in the skin near the anus. It leads to the inside of the anal canal in the colon.
Analgesic Nephropathy
Taking one or a mix of painkiller medicines daily over a long time may cause chronic kidney problems. This is called analgesic nephropathy. Painkillers that combine two or more medicines (such as, aspirin and acetaminophen together) with caffeine or codeine are the most likely to harm the kidneys.
Anaphylaxis in Children
Anaphylaxis is a severe and sometimes life-threatening reaction to an allergen. An allergen is something that your child is allergic to. Anaphylaxis is a medical emergency. Your child can have a reaction within seconds or as long as an hour after contact.
Anaplasmosis
Anaplasmosis is an illness caused by bacteria that’s spread by ticks. The bacteria are called Anaplasma phagocytophilum. The illness causes fever, muscle aches, and other symptoms.
Anastomotic Leak After Gastric Bypass Surgery
One risk of gastric bypass surgery is that the anastomosis, the new connection created in your intestines during the bypass surgery, will leak. Leaking of digestive juices and partially digested food through an anastomosis is one of the most serious complications after bypass surgery.
Anastomotic Stenosis (Stricture) After Gastric Bypass Surgery
After gastric bypass surgery for weight loss, the new connection between the stomach pouch and the small intestine may narrow. This is called an anastomotic stenosis. It’s also known as a stricture.
Anatomical Pathology
Detailed information on several of the different divisions of anatomical pathology, including biopsy, surgical pathology, cytology, and autopsy
Anatomy and Development of the Mouth and Teeth
Children's teeth begin developing in the fetus. Good nutrition from the mother during pregnancy is important in the development of the teeth.
Anatomy and Function of the Coronary Arteries
Detailed information and illustrations about the 2 coronary arteries, which supply blood to the heart muscle.
Anatomy and Function of the Electrical System
Detailed anatomical description of the heart's electrical system, including simple definitions and a labeled, full-color illustration
Anatomy and Function of the Heart Valves
Detailed anatomical description of the heart valves, including simple definitions and a labeled, full-color illustration.
Anatomy and Function of the Heart's Electrical System
The heart is a pump made of muscle tissue. Its pumping action is controlled by electrical impulses.
Anatomy and Function of the Urinary System
Detailed anatomical description of the urinary system, including simple definitions and labeled, full-color illustrations.
Anatomy and Physiology of the Ear
The main parts of the ear are the outer ear, the eardrum (tympanic membrane), the middle ear, and the inner ear.
Anatomy and Physiology of the Nose and Throat
A helpful guide to the nose, the sinuses, and the throat.
Anatomy of a Child's Brain
The brain can be divided into 3 main parts: the cerebrum, the brainstem, and the cerebellum.
Anatomy of a Joint
Joints are the areas where 2 or more bones meet. Most joints are mobile, allowing the bones to move.
Anatomy of a Newborn Baby’s Skull
Detailed anatomical information on the newborn skull.
Anatomy of a Normal Spine
Learn about the spine with these helpful detailed illustrations.
Anatomy of Female Pelvic Area
The female pelvic area contains a number of organs and structures: the endometrium, uterus, ovaries, cervix, vagina, and vulva.
Anatomy of the Anus
The anus is the last part of the digestive tract. Learn more about its anatomy, including where anal cancer is likely to start.
Anatomy of the Bladder
The bladder is a hollow organ in your lower belly. Learn about its anatomy.
Anatomy of the Brain
The brain is an important organ that controls thought, memory, emotion, touch, motor skills, vision, respiration, and every process that regulates your body.
Anatomy of the Breasts
A closer look at the structure of the breast.
Anatomy of the Child’s Nervous System
The nervous system is made up of the brain, spinal cord, and nerves. These parts work together to allow your child to think, learn, speak, and feel emotions. They also help to control basic body functions such as movement, sensation, breathing, and heartbeat. The brain and spinal cord make up the central nervous system. The nerves outside the brain and spinal cord make up the peripheral nervous system. Following is more information about the main parts of the nervous system.
Anatomy of the Digestive System
As food moves along the digestive tract, it is digested. This means it's changed into substances that can be absorbed into the bloodstream.
Anatomy of the Digestive System (Child)
The digestive system breaks food down into basic nutrients that can be used by the body. As food moves through the digestive tract, it's broken down into parts and absorbed into the bloodstream.
Anatomy of the Ear
This helpful article and diagram explain how all the parts of the ear work together.
Anatomy of the Elbow
The elbow is a hinge joint between the humerus bone in the upper arm and the radius and ulnar bones in the lower arm.
Anatomy of the Endocrine System
The endocrine system includes not only the pancreas—the organ involved in the development of diabetes—but also the pituitary, thyroid, and other glands.
Anatomy of the Endocrine System in Children
Detailed information on the endocrine system, its anatomy and function, including a full-color, labeled illustration.
Anatomy of the Eye
The structures of the eye include the cornea, iris, pupil, macula, retina, and the optic nerve.
Anatomy of the Female Urinary Tract
A helpful diagram and explanation of the female urinary tract.
Anatomy of the Foot
Your feet are susceptible to many stresses. Foot pain and problems can cause pain, inflammation, or injury.
Anatomy of the Hand
Each of your hands has three types of bones: phalanges in your fingers; metacarpals in your mid-hand, and carpals in your wrist.
Anatomy of the Inner Ear
A helpful guide to the inner ear, complete with a diagram.
Anatomy of the Knee
The knee is a vulnerable joint that bears a lot of stress from everyday activities, such as lifting and from high-impact activities, such as jogging.
Anatomy of the Male Abdomen and Groin
A detailed look at the abdomen and the groin.
Anatomy of the Male and Female Pelvis
The pelvis is a basin-shaped structure that supports the spinal column and protects the abdominal organs.
Anatomy of the Male Urinary Tract
Your urinary tract helps to get rid of your body's liquid waste. Here's a look at how it works, along with a diagram.
Anatomy of the Prostate Gland
Details about the size, location, and function of the prostate gland, including a diagram.
Anatomy of the Respiratory System
A detailed look at the respiratory system and how it works.
Anatomy of the Respiratory System in Children
A detailed anatomical description of the respiratory system, including simple definitions and labeled, full-color illustrations.
Anatomy of the Sacroiliac Joint
Learn the anatomy of the sacroiliac joint.
Anatomy of the Shoulder
The shoulder is a complex joint with several layers, including bones, ligaments, tendons, and muscles.
Anatomy of the Skin
The skin is the body's largest organ. It serves as a protective shield against heat, light, injury, and infection.
Anatomy of the Spinal Cord
Made up of bundles of nerves, the spinal cord carries signals from your body to your brain, and vice versa.
Anatomy of the Spine
Your backbone, also called the vertebral column, is made up of 33 vertebrae separated by spongy disks.
Anatomy of the Stomach
The stomach is a J-shaped organ in the upper belly (abdomen). Read on to learn more about the stomach.
Anatomy of the Urinary Tract (Child)
Your child's urinary tract helps get rid of the body's liquid waste (urine). Here are details about each part of the urinary tract.
Anatomy of the Uterus
The uterus is part of the female reproductive system. You may know it as the womb.
Anatomy of the Vulva
The vulva is the outer part of the female reproductive system. It's also called the external genitalia.
Anatomy of Your Child’s Respiratory System
Read on for details about breathing and the different parts of your child's respiratory system.
Anatomy: Fetus in Utero
Definitions of terms related to the anatomy of a fetus in utero.
Anemia
Anemia is a condition that occurs when your body doesn't have enough healthy red blood cells. Read on to learn about anemia symptoms, diagnosis, and treatment.
Anemia and Chemotherapy
Chemotherapy can damage your body’s ability to make red blood cells, so body tissues don't get enough oxygen. This is a condition called anemia. People who have anemia may feel very weak or tired, dizzy, faint, or short of breath, or may feel that their hearts are beating very fast.
Anemia and Kidney Disease
Anemia is a health problem that affects your blood. Normally, the kidneys make a protein called erythropoietin. It tells your body when to make new red blood cells. But if you have kidney disease, your kidneys may not be able to make enough of this protein. You may also not have enough iron in your body. Iron is vital to making red blood cells.
Anemia During Cancer
When levels of healthy red blood cells (RBCs) in the body drop to levels that are below normal, the condition is called anemia. Anemia can occur during cancer and its treatment for many reasons.
Anemia During Pregnancy
Anemia in pregnant women is often caused by not having enough iron in the blood. It is common in pregnancy and very easy to treat.
Anemia in Children
Anemia is a common problem in children. A child who has anemia doesn't have enough red blood cells or hemoglobin. Read on to learn more about causes, symptoms, diagnosis, and treatment.
Anemia in Pregnancy
Anemia is when your blood has too few red blood cells. Having too few red blood cells makes it harder for your blood to carry oxygen or iron. This can affect how cells work in nerves and muscles. During pregnancy, your baby also needs your blood.
Anemia Overview
Anemia is a common blood disorder. It occurs when you have fewer red blood cells than normal, or not enough hemoglobin in your blood. Here's what you need to know about this condition.
Anemia Quiz
Answer this one: What is the most common cause of anemia?
Anemias
Detailed information on the different types of anemia, including aplastic anemia, anemia of folate deficiency, glucose-6-phosphate dehydrogenase deficiency, hemolytic anemia, iron deficiency anemia, megaloblastic anemia, and sickle cell disease
Anencephaly in Children
Anencephaly is a birth defect that affects the brain and skull bones. With this condition, the brain isn't fully formed. It often lacks part or all of the cerebrum.
Anesthesia Choices for Labor
Anesthetics may numb only 1 region of your body, or they may let you sleep during surgery. These medicines are given by trained specialists. Whenever possible, regional anesthesia is used so you can be awake during your baby's birth.
Anesthesia: Before You Receive Anesthesia
This sheet explains steps you may need to take to prepare for anesthesia.
Anesthesia: General Anesthesia
Details about what to expect when you have anesthesia.
Anesthesia: Monitored Anesthesia Care (MAC)
Your surgeon will use monitored anesthesia care (MAC) during your upcoming surgery. This sheet tells you more about this type of anesthesia.
Anesthesia: Monitored Anesthesia Care (MAC)
Your surgeon will use monitored anesthesia care (MAC) during your upcoming surgery. This sheet tells you more about this type of anesthesia.
Anesthesia: Regional Anesthesia
Your surgeon has decided that you'll receive regional anesthesia. This sheet tells you what to expect with this type of anesthesia.
Aneurysm
An aneurysm is a bulging, weak area in the wall of a blood vessel. An aneurysm may occur in any blood vessel, but most often develops in an artery rather than a vein.
Anger Management: Strategies for Parents and Grandparents
Anger management helps you deal with your child or grandchild in a kind and constructive way. It also sets a good example of how to handle challenging situations and work out conflicts.
Angina Pectoris
Angina pectoris--or simply angina--is chest pain or discomfort that keeps coming back. It happens when some part of your heart does not get enough blood and oxygen. Read on for details.
Angiogenesis Inhibitors
Sometimes called antiangiogenic therapy, this treatment may prevent the growth of cancer by blocking the formation of new blood vessels.
Angioplasty and Stent Placement for the Heart
Angioplasty, also called percutaneous coronary intervention (PCI), is a procedure used to open blocked coronary arteries (caused by coronary artery disease) and restore blood flow to the heart muscle without open-heart surgery.
Angiotensin Converting Enzyme (Blood)
This test measures the level of a certain enzyme in your blood. It can help diagnose a condition called sarcoidosis.
Angiotensin Receptor Blockers (ARBs)
Angiotensin receptor blockers (ARBs) are medicines. They are most often prescribed to treat high blood pressure, but can be used to treat other conditions. This sheet tells you how ARBs work and how to use them effectively.
Animal Bites
Detailed information on animal bites and rabies, including symptoms, diagnosis, treatment, and prevention
Animal Bites and Scratches
Most bites and scratches from household pets are nothing to worry about. But some bites or scratches can be serious. Others may become infected or pose the risk of rabies. So it's best to talk with your healthcare provider or get medical care.
Anion Gap (Blood)
This test looks at electrically charged particles in your blood to help your doctor diagnose acid-base imbalances.
Aniridia
Aniridia is a serious and rare eye disorder in which the iris is partly or completely gone.
Ankle Alphabet (Flexibility)
Follow the step-by-step directions for this ankle exercise.
Ankle Arthroscopy: Conditions Treated
Arthroscopy is used to find and treat ankle problems. These include loose bodies, bone spurs, osteochondritis dissecans (OCD), and synovitis.
Ankle Brachial Index (ABI) Test
The ankle brachial index (ABI) is a simple test that compares the blood pressure measured at your ankle with the blood pressure measured at your arm. It is used to check for peripheral artery disease (PAD) in the legs, or to see if PAD is getting worse.
Ankle Brachial Index Test
The ankle brachial index, or ABI, is a simple test that compares the blood pressure in the upper and lower limbs. It is one way to detect peripheral arterial disease.
Ankle Dislocation
A joint dislocation is when there is an abnormal separation between the bones of a joint. When this happens in your ankle joint, it's known as an ankle dislocation. It is a severe injury.
Ankle Dorsiflexion (Strength)
This exercise is for your ankles.
Ankle Dorsiflexion/Plantarflexion (Flexibility)
This exercise helps improve flexibility in the ankles.
Ankle Fracture Open Reduction and Internal Fixation
Open reduction and internal fixation (ORIF) is a type of surgery used to stabilize and heal a broken bone. You might need this procedure to treat your broken ankle.
Ankle Fusion
Ankle fusion is a type of surgery to fuse the bones of your ankle into one piece. It's also known as ankle arthrodesis. The surgery is usually done to treat arthritis in the ankle.
Ankle Inversion (Strength)
Follow the step-by-step instructions for this exercise.
Ankle Replacement Surgery
Ankle replacement surgery is the replacement of a damaged ankle joint with an artificial implant.
Ankylosing Spondylitis
Ankylosing spondylitis (AS) is a type of arthritis that affects the spine. Read on to learn details about this condition, including symptoms, diagnosis, and treatment.
Ankylosing Spondylitis in Adults
Young and old people can develop AS. But it’s more common in people ages 17 to 35. Men are more likely than women to have AS. You are also more likely to have it if someone else in your family had it.
Ankylosing Spondylitis in Children
Anyone can develop ankylosing spondylitis, even children. It’s a type of arthritis that attacks the spine. When it’s found in a child, it’s called juvenile ankylosing spondylitis.
Annular Pancreas
The term annular pancreas means that a ring of excess pancreatic tissue encases the first part of your small intestine. Your pancreas can still function, but the excess tissue can cause a number of symptoms. Read on to learn more.
Anomalous Coronary Artery in Children
An anomalous coronary artery (ACA) is a heart defect. This is something your baby is born with (congenital). In ACA, the blood vessels that supply blood to your child’s heart muscle aren’t normal.
Anomalous Coronary Artery Intervention
Anomalous coronary artery intervention is a type of procedure to correct a problem with the coronary artery. Read on to learn more about this procedure.
Anorectal Abscess
An anorectal abscess is a collection of pus under the skin in the area of the anus and rectum.
Anorectal Malformation in Children
Anorectal malformations are birth defects, or problems that happen as an unborn baby is developing during pregnancy. With this defect, the anus and rectum don’t develop properly. They are the lower part of the digestive tract.
Anorectal Manometry
Anorectal manometry is a test to look at how well the muscles and nerves in the rectum and anus are working.
Anorexia Nervosa
Anorexia nervosa (or simply anorexia) is an eating disorder that causes people to obsess about their weight and food. People who suffer with this behavior problem have a distorted body image. They see themselves as overweight even when their weight is dangerously low.
Anorexia Nervosa in Children
Anorexia nervosa is an eating disorder. It is a form of self-starvation. Children and teens with this health problem have a distorted body image. They think they weigh too much.
Answers to Questions About Your Child's Mental Health
Children's mental health is as important as their physical health. Read on for helpful answers to common questions that can help you protect your child's mental health.
Answers to Your Questions About Arthritis and Exercise
People with arthritis can improve their health and fitness through exercise without damaging their joints.
Antegrade Pyelogram
An antegrade pyelogram is an imaging test to find a blockage (obstruction) in the upper urinary tract. Read on to learn about what to expect before, during, and after this test.
Anterior Pituitary Disorders
Detailed information on anterior pituitary disorders, including hypopituitarism
Anthrax Quiz
Anthrax is a serious disease that can affect the skin, lungs, and digestive tract. Learn more about this disease by taking this quiz.
Anthrax Vaccine: What You Need to Know
People can get anthrax disease from contact with infected animals or contaminated animal products such as wool, meat, or hides.
Anti-inflammatory Diet
This diet involves choosing a healthy variety of foods. It focuses on foods that may help reduce chronic (long-lasting) inflammation, such as fruits, vegetables, and whole grains.
Anti-Tissue Transglutaminase Antibody
This test screens for celiac disease and also helps your healthcare provider monitor your condition if you have this disease.
Antibiotic Resistance
Antibiotics are medicines used to kill bacteria. Over time, certain groups of these germs may adapt to these medicines. They may change in such a way that antibiotics can't kill them. This is called antibiotic resistance.
Antibiotics
Detailed information on the use of antibiotics and children
Antibiotics Quiz
Antibiotics have been called "wonder drugs," because of their ability to treat bacterial infections that were once deadly. Antibiotics have saved countless lives since they were first introduced 60 years ago. But over use of these drugs has allowed some bacteria to become resistant to them.
Anticipatory Grief
Anticipatory grief is similar to the normal process of mourning, but it happens before the actual death.
Antidiuretic Hormone
This test measures the amount of antidiuretic hormone (ADH) in your blood. ADH regulates your body's balance of water.
Antimitochondrial Antibody and Antimitochondrial M2 Antibody
This test looks for certain substances in your blood that may mean you have a form of liver disease.
Antimyocardial Antibody
This test checks the level of a certain antibody in your blood that can indicate heart damage. The antibodies show up before symptoms appear.
Antinuclear Antibody
This blood test is done to help your doctor diagnose a type of illness called an autoimmune disease.
Antiphospholipid Antibody
This test checks for antibodies that can help diagnose a condition with abnormal blood clots or an autoimmune disease.
Antiphospholipid Syndrome in Pregnancy
Antiphospholipid syndrome is an autoimmune disease. This happens when your immune system fights against normal cells. In this condition, your body makes antibodies that attack a kind of fat in cells. This makes your blood clot too easily.
Antithrombin (Activity and Antigen)
The antithrombin activity and antigen tests are used to help find out what may be causing abnormal blood clots in your body.
Anxiety and Traumatic Brain Injury (TBI)
Dealing with anxiety is a common symptom of a traumatic brain injury. But when fear and worry become so strong that they get in the way of your ability to live your life, you could have an anxiety disorder. Read on to learn more.
Anxiety Disorders
Detailed information on the most common types of anxiety disorders, including panic disorder, obsessive-compulsive disorder, post-traumatic stress disorder, generalized anxiety disorder, and phobias
Anxiety Disorders in Children
Detailed information on the most common types of anxiety disorders, including panic disorder, obsessive-compulsive disorder, post-traumatic stress disorder, generalized anxiety disorder, and phobias
Anxiety with Cancer- Progressive Muscle Relaxation and Guided Imagery
These skills take practice, and the more you practice them, the more helpful they are. Some people find it helpful to listen to soothing music as they practice.
Aortic Angiogram
An aortic angiogram is a test that takes pictures of the aorta. This is the main blood vessel that carries blood from your heart to the rest of your body. The test can show problems with your aorta, such as a blockage or an aneurysm (a balloon-like bulge in the wall of the aorta).
Aortic Dissection
Problems such as high blood pressure can weaken an area of the aorta over time. This can cause a tear in the lining of that area.
Aortic Dissection Repair
An aortic dissection is a tear (dissection) in the wall of your body's main artery, the aorta. Treatment will depend on where the tear is located. You will most likely need surgery if the tear is on the ascending aorta. This is the part of the aorta that goes up through your chest toward your head.
Aortic Stenosis in Children
Aortic stenosis means that your child has a heart valve that is too narrow or is blocked. The aortic valve is 1 of 4 heart valves that keep blood flowing through the heart. The valves make sure blood flows in only one direction. The aortic valve keeps blood flowing from the left ventricle to the aorta.
Aortic Valve Regurgitation
Aortic valve regurgitation is when a person's aortic valve leaks. The aortic valve is 1 of the heart's 4 valves. These valves help the blood flow through the heart and out to the body. Normally, the aortic valve stops blood from flowing back into the left ventricle. With aortic valve regurgitation, some blood leaks back through the valve as the heart relaxes.
Aortic Valve Replacement: Minimally Invasive
A minimally invasive aortic valve replacement is a surgery to replace a badly working aortic valve with an artificial valve. Learn what to expect before, during, and after this procedure.
Aortic Valve Replacement: Open
An open, invasive aortic valve replacement is a surgery to replace a poorly working aortic valve with an artificial valve. An open, invasive aortic valve replacement is a surgery to replace a poorly working aortic valve with an artificial valve. 
Aphasia
Aphasia is a language disorder caused by damage in a specific area of the brain that controls language expression and comprehension. Aphasia leaves a person unable to communicate effectively with others.
Aphasia: Improving Communication
Aphasia happens when a part of the brain that processes language is damaged. A speech-language therapist (an expert trained in speech and language rehabilitation) will work closely with the person and their family to help the person communicate.
Aplastic Anemia
Aplastic anemia occurs when your bone marrow doesn’t make enough red and white blood cells, and platelets.
Aplastic Anemia in Children
Aplastic anemia is a serious condition in which the bone marrow doesn’t make enough new blood cells. Read on for details about causes, symptoms, diagnosis, and treatment.
Aplastic Anemia Quiz
Aplastic anemia is a rare blood disorder that affects the growth of blood cells. "Aplastic" means "lack of growth."
Apnea of Prematurity
Apnea is a term that means breathing has stopped for more than 20 seconds. It can happen in full-term babies, but it is more common in premature babies. The more premature the baby, the greater the chances that apnea will occur.
Apolipoprotein A
This test measures the amount of a protein in your blood related to LDL and HDL cholesterol. It can help predict your risk for heart disease.
Apolipoprotein B-100
This test measures the amount of a certain type of cholesterol in your blood. It helps your health care provider determine your risk for cardiovascular disease, a disease affecting your heart and blood vessels.
Appendectomy
An appendectomy is surgery to remove the appendix when it is infected. This condition is called appendicitis. Appendectomy is a common emergency surgery.
Appendectomy
An appendectomy is surgery to remove the appendix. The goal is to remove the appendix safely. Here's what you need to know.
Appendectomy
An appendectomy is surgery to remove the appendix. The goal is to remove the appendix safely. Here's what you need to know.
Appendectomy for Children
An appendectomy is surgery to remove a child’s appendix. An appendectomy may be done as an open surgery or as laparoscopic surgery. Read on to learn what to expect before, during, and after the surgery.
Appendicitis
Appendicitis is a medical emergency that happens when your appendix becomes sore, swollen, and diseased.
Appendicitis in Children
Appendicitis is a painful swelling and infection of the appendix. It is a medical emergency. The appendix can burst or rupture. This is serious and can lead to more infection. If not treated, it can be fatal.
Appendix Quiz
The human appendix is a 3- to 6-inch narrow tube located where the small and large intestines join. It's mostly known for becoming inflamed, affecting thousands of Americans each year. To learn more about the appendix, take this quiz.
Appetite / Taste Changes and Chemotherapy
Treatment for cancer, as well as the cancer itself, can affect your sense of taste or smell. You may find that many foods seem to have less taste. Other foods, especially meat or other high-protein foods, may taste bitter or metallic. Read on to learn what you can do about it.
Apple Carrot Salad
Perfect combination of fall flavors.
Apple Coffee Cake
This cake gets its moistness from the apples and raisins, so it needs little oil.
Applied Behavior Analysis (ABA) for Autism
Applied behavior analysis (ABA) is a type of therapy for children with autism. During the therapy, good behaviors and social responses are rewarded. Problem behaviors are ignored. Over time, this can create a change in behavior and social skills for your child.
April Fool
A quick English dessert of cooked berries layered with whipped cream.
Arachnoid Cyst (Leptomeningeal Cyst)
An arachnoid cyst is a fluid-filled sac of the brain or spinal cord. It forms between the brain or spinal cord and the arachnoid membrane. An arachnoid cyst contains cerebrospinal fluid (CSF). These cysts appear most often in children, but they may also occur in adults.
Arch Retraining
These exercises help strengthen your arches.
Are Those Memory Problems a Sign of Dementia?
Knowing the difference between forgetfulness and more serious memory problems can help you spot red flags in your relatives’ behavior.
Arm Care After a Stroke
Learn about getting correct arm care after a stroke and why it's so important.
Arm Exercises- Biceps Curl
Learn how to do a biceps curl to help stretch and strengthen your arms.
Arrhythmias
An arrhythmia is an abnormal heart rhythm that can cause problems with the contractions of your heart chambers.
Arrhythmias in Children
An arrhythmia is an abnormal rhythm of the heart. In an arrhythmia, abnormal electrical signals through the heart muscle may cause the heart to beat too fast (tachycardia), too slow (bradycardia), or irregularly. Read on to learn more.
Arrhythmogenic Right Ventricular Cardiomyopathy
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a disease of the heart muscle. In this disease, fatty fibrous tissue replaces normal heart muscle. This interrupts normal electrical signals in the heart and may cause irregular and potentially life-threatening heart rhythms. The heart also becomes weaker over time leading to heart failure.
Art Therapy, Dance Therapy, Music Therapy, and Imagery
Art, dance, music—all are examples of mind-body therapy. Although these therapies do not cure cancer, they provide an outlet for emotions and can improve mental and physical well-being.
Art, Dance-Movement, and Music Therapy
Detailed information on art therapy, dance/movement therapy, and music therapy.
Arterial Blood Gas (ABG)
An arterial blood gas analysis measures the balance of oxygen and carbon dioxide in your blood to see how well your lungs are working.
Arterial Line Placement
An arterial line is a thin tube put into an artery. It lets your blood pressure be easily checked at all times. Here's what to expect with this procedure.
Arteriovenous (AV) Fistula for Dialysis
An AV fistula is a connection between an artery and a vein. For this procedure, an AV fistula is surgically made using an artery and a vein in your arm.
Arteriovenous Malformation (AVM)
You have an arteriovenous malformation (AVM). An AVM is an abnormal tangle of blood vessels in the brain. Some AVMs never burst (rupture). But some things can lead to a rupture. If you have an AVM, you were likely born with it. But most people don't know they have one until a problem develops.
Arteriovenous Malformations
Arteriovenous malformations (AVMs) happen when a group of blood vessels in your body forms incorrectly. Here's what you need to know.
Arthritis
Arthritis and other rheumatic diseases are common conditions that cause pain, swelling, and limited movement. They affect joints and connective tissues around the body. Millions of people in the U.S. have some form of arthritis.
Arthritis Diagnosis
Diagnosing arthritis and other rheumatic diseases is often difficult, as many symptoms are similar among the different diseases.
Arthritis Quiz
True or False: Arthritis affects only the wrist, ankle, and knee joints.
Arthritis: Exercise
Regular exercise can help control arthritis. Exercise can strengthen the muscles around the joints for better support.
Arthrogram
An arthrogram is an imaging study used to assess your joint problem. Contrast fluid is injected into the joint being studied. Then, X-ray, a CT scan, or MRI is used to create images.
Arthrography
Arthrography is a type of imaging test used to look at a joint, such as the shoulder, knee, or hip. It may be done if standard X-rays do not show the needed details of the joint structure and function.
Arthroplasty
Arthroplasty is a surgical procedure to restore the function of a joint. A joint can be restored by resurfacing the bones. An artificial joint (called a prosthesis) may also be used.
Arthroscopy
Arthroscopy is a minimally-invasive procedure used to diagnose and treat conditions affecting joints. The healthcare provider can directly view the internal structures of a joint using an instrument called an arthroscope. An arthroscope is a small, tube shaped instrument that is used to look inside a joint.
Arthroscopy
Arthroscopy is used to diagnose and treat joint problems. After arthroscopy, you may be able to return to the activities you enjoy.
Artificial Urinary Sphincter
An artificial urinary sphincter (AUS) is a man-made device that works like your urethral sphincter. It's used to treat stress urinary incontinence.
Ascites
Ascites is a condition that occurs when fluid collects in spaces in your belly. It can be painful and keep you from moving around comfortably. Ascites can set the stage for an infection in your belly. Fluid may also move into your chest and surround your lungs. This makes it hard to breathe.
Aspartate Transaminase
This test is used to diagnose liver damage. AST is an enzyme that is found in your blood when your liver or muscles are damaged.
Aspiration from Dysphagia
Aspiration is when something enters your airway or lungs by accident. It may be food, liquid, or some other material. This can cause serious health problems, such as pneumonia. Aspiration can happen when you have trouble swallowing normally. This is called dysphagia.
Aspiration in Babies and Children
Aspiration is when something enters the airway or lungs by accident. It may be food, liquid, or some other material. This can cause serious health problems, such as pneumonia.
Aspirin Quiz
Each year, more than a million Americans die of heart attacks and other forms of heart disease. Low-dose aspirin therapy is one weapon in the arsenal against heart disease that also includes healthy dieting, adequate exercise, and not smoking. Learn more about aspirin's role in combating heart disease by taking this quiz
Assessments for Newborn Babies
Each newborn baby is carefully checked at birth for signs of problems or complications.
Assisted Living (AL)
Assisted living (AL) is a setting for older adults or in some centers, adults of any age who are living with disability.
Assistive Equipment for the Home
Assistive equipment is any kind of tool or device that can help simplify caregiving or make the environment safer for an ill, disabled, or elderly person.
Assistive Listening Devices (ALDs)
ALDs can help you hear better. They are used alone or with a hearing aid. ALDs amplify sounds that you may hear in your daily life. Read on to learn about the different kinds of ALDs.
Asthma
Asthma is a chronic lung disease. The airways become sensitive to triggers (allergens and irritants). Here's what you need to know.
Asthma and COPD
If you have COPD, you may also have asthma. A disease called asthma-COPD overlap includes parts of both conditions. Read on for details about symptoms, treatment, and self-care tips.
Asthma and COPD- Controlling Other Triggers
The weather. Food additives. Illness. Many things may set off your asthma symptoms. Here's a look at some common asthma triggers, and tips to help ease your symptoms.
Asthma and COPD- Controlling Other Triggers
The weather. Food additives. Illness. Many things may set off your asthma symptoms. Here's a look at some common asthma triggers, and tips to help ease your symptoms.
Asthma and Exercise
Exercise is a common trigger for many people with asthma. This is called exercise-induced bronchoconstriction or EIB. But living with EIB doesn't mean you need to give up exercise.
Asthma and Physical Activity
When you have asthma, exercise can make you breathe faster. This may cause asthma symptoms or an asthma attack.
Asthma and Pregnancy
With correct asthma management and good prenatal care, most women with asthma can have healthy pregnancies.
Asthma Awareness Quiz
Find out how much you know about asthma basics with this quiz.
Asthma in Children
Asthma is a long-term (chronic) lung disease that causes your child's airways to become sensitive to certain things (triggers).
Asthma in Children Index
Detailed information on asthma, including triggers of an asthma attack, symptoms, diagnosis, management, and treatment
Asthma in Children Quiz
Are you a parent of a child with asthma? Take this quiz and stop feeling guilty.
Asthma in Older Adults
Many people think of asthma as a childhood disease, but it often occurs as a new condition in older adults.
Asthma Knowledge Quiz
Do you know tobacco smoke's effect on asthma? What about asthma's effect on pregnancy? Find out the answers to these and other questions by taking this quiz.
Asthma Medicine
Medicines play a key role in controlling asthma. Some help control asthma symptoms and prevent flare-ups. Others are used to treat symptoms when they occur. Here's what you should know.
Asthma on Campus
College can pose challenges for the student with asthma. New and unfamiliar living quarters, school and social stresses, and other factors can set off a flare-up. Here are some helpful tips.
Asthma Trigger Checklist
Allergens, irritants, and other things may set off your asthma. Here is a list of triggers and ways to stay away from them.
Asthma Triggers
Asthma triggers are things that can cause an asthma flare-up. Your health care provider can help you know what your triggers are and how to manage them.
Asthma Triggers Quiz
Asthma flare-ups can be started by things known as triggers. Do you know what can trigger asthma? Test your knowledge.
Asthma- Using a Peak Flow Meter
A peak flow meter for asthma is like a thermometer for a fever - it helps you keep track of what's going on inside your lungs by measuring airflow out of the lungs.
Asthma: Allergy Testing
If you think you may have allergies, talk with your healthcare provider about getting tested.
Astrocytoma in Children
Astrocytoma is the most common type of brain tumor in children. It is usually low grade, which means slow-growing.
Ataxia
Ataxia means without coordination. People with ataxia lose muscle control in their arms and legs, which may lead to a lack of balance, coordination, and trouble walking. Ataxia may affect the fingers, hands, arms, legs, body, speech, and even eye movements.
Ataxia Telangiectasia (A-T)
A-T is a rare childhood disease that affects the nervous system and other body systems.
Atelectasis
Atelectasis is the collapse of 1 or more sections (lobes) of the lungs. Here's what you need to know about this condition.
Atherosclerosis
Atherosclerosis is a type of thickening or hardening of the arteries caused by a buildup of plaque in the inner lining of an artery. It can increase your risk of heart attack, stroke, and other circulatory conditions.
Atherosclerotic Cardiovascular Disease: Know Your Risk
Your healthcare provider doesn’t have a crystal ball. But there is a way they can predict the future, at least when it comes to your chances of developing heart disease.
Athlete's Foot Quiz
The itching caused by athlete's foot can be intense. Named for the active people who seem most prone to this condition, athlete's foot can affect even couch potatoes. Find out more by taking this multiple-choice quiz.
Athletic Shoes: Lace Them to Fit
Simply lacing your shoes or sneakers correctly along with choosing a shoe that fits your foot correctly, can add comfort to your stride and prevent foot injuries.
Atmosphere-Supplying Respirators
Atmosphere-supplying respirators provide the greatest respiratory protection. They let you breathe air from an outside source, such as an air tank or a compressor. Learn about the 3 different types and how to take care of them.
Atopic Dermatitis
Atopic dermatitis is a chronic skin disorder. It is also called eczema. It often affects infants and may last until adulthood. It causes itchy, scaly patches on the skin.
Atopic Dermatitis in Children
Atopic dermatitis is a long-term (chronic) skin condition. It causes dry, itchy skin. It’s very common in babies and children. It often first appears between ages 3 and 6 months.
Atopic Dermatitis Quiz
Atopic dermatitis is a chronic, inherited skin condition that affects millions of Americans. The following quiz offers helpful facts about the condition.
Atrial Fibrillation
Atrial fibrillation, or AFib, is a kind of abnormal heart rhythm or arrhythmia. AFib increases the risk for blood clots. These clots can then travel to the brain, causing a stroke. This is why AFib significantly increases the risk for stroke.
Atrial Fibrillation Ablation
Atrial fibrillation ablation is a procedure to treat atrial fibrillation. It can help the heart maintain a normal heart rhythm. Read on to learn more.
Atrial Fibrillation and Stroke Prevention
Atrial fibrillation increases the risk for stroke. So stroke prevention is an important part of treatment for atrial fibrillation.
Atrial Fibrillation Surgery
The Maze procedure is a type of heart surgery to treat atrial fibrillation. Read on to learn details.
Atrial Flutter
Atrial flutter is an abnormal heart rhythm that causes the atria to beat more quickly than they should.
Atrial Septal Defect (ASD) in Children
The atrial septum is the wall between the two upper chambers of the heart (right and left atria). An atrial septal defect (ASD) is an abnormal hole in this wall. ASD is a heart problem that is present at birth (congenital). Read on for details about symptoms, diagnosis, and treatment.
Atrioventricular (AV) Canal Defect in Children
An atrioventricular (AV) canal defect is a congenital heart defect. This means that your child is born with it. These defects may range from partial to complete. These conditions cause oxygen-rich (red) blood and oxygen-poor (blue) blood to mix. This sends extra blood to the child's lungs.
Attention-Deficit/Hyperactivity Disorder (ADHD) in Adults
ADHD is often thought of as a kid’s problem. That’s why it’s often missed in adults. Read on to learn about the symptoms and what to do if you think you may have ADHD.
Attention-Deficit/Hyperactivity Disorder (ADHD) in Adults
ADHD is often thought of as a kid’s problem. That’s why it’s often missed in adults. Read on to learn about the symptoms and what to do if you think you may have ADHD.
Attention-Deficit/Hyperactivity Disorder (ADHD) in Children
Attention-deficit/hyperactivity disorder (ADHD) is a brain-based, or neurodevelopmental, disorder. It is often first diagnosed in childhood.
Audiologist
Audiologists measure and evaluate a person's ability to hear sounds. They specialize in treating people with hearing disorders.
Audiology
Audiologists address hearing and balance problems in people of all ages. They also help with the fitting and management of hearing aids.
Auricular Reconstruction of a Child’s Ear: Phase 1
If your child's ear is missing or not developed, he or she may need to have auricular reconstruction. This is when a framework for the outer ear is made from cartilage.
Auricular Reconstruction of a Child’s Ear: Phase 2
This surgery can help reconstruct your child's outer ear that is missing or underdeveloped. This condition is called microtia.
Auricular Reconstruction of a Child’s Ear: Phase 3
This surgery can help reconstruct your child's missing or underdeveloped outer ear.
Autism Quiz
Autism is a developmental disability that usually starts in early childhood. Because different children can have widely different symptoms, autism is classified as a "spectrum disorder," which means it is a group of disorders with similar features.
Autism Spectrum Disorder in Children
Autism spectrum disorder is a problem that affects a child's nervous system and growth and development. It often shows up during a child's first 3 years of life.
Autoimmune Diseases and Pregnancy
Detailed information on autoimmune diseases and pregnancy
Autoimmune Diseases Quiz
Test your knowledge of these serious—and mysterious—class of diseases.
Autoimmune Hepatitis
Autoimmune hepatitis is when your body’s infection-fighting system (immune system) attacks your liver cells. This causes redness and swelling (inflammation) and liver damage.
Automated External Defibrillator
An AED is a small, portable, battery-powered machine with a computer in it. The machine detects heart activity. It can give an electric shock to someone if needed.
Autonomic Dysreflexia
People with spinal cord injury (SCI) may be at risk for a serious problem called autonomic dysreflexia (AD). If you have an SCI at level T6 or higher, you should be aware of this problem and how it could affect you.
Autopsy
Detailed information on autopsy, including who does the procedure and how an autopsy is done.
Autosomal Dominant Inheritance
A mutation is a change in a gene that prevents it from working correctly. We inherit mutations from our parents in specific ways, one of which is called autosomal dominant inheritance.
Autosomal Recessive Inheritance
Detailed information on autosomal recessive genes.
Autosomal Recessive: Cystic Fibrosis, Sickle Cell Anemia, Tay Sachs Disease
Overview of autosomal recessive inheritance, including cystic fibrosis, sickle cell anemia, and Tay Sachs disease.
Avascular Necrosis
Avascular necrosis develops when blood supply to a bone is cut off. This causes the bone to die and can cause pain and joint problems.
AVM: Preparing for Surgery
Here you will find out how to prepare for AVM surgery, what to expect the day of surgery, and the risks of surgery.
AVM: Recovering from Surgery
After AVM surgery is done, the surgeon will talk with your loved ones. You'll wake up in a recovery area. Then you'll be moved to a special unit, often an ICU (intensive care unit), where you can be closely watched.
Avocado Tacos / Tacos de aguacate
These fresh-tasting tacos are great for a light meal!
Avoiding Latex
If you have a latex allergy, the best way to prevent symptoms is to avoid latex. Here are some tips on how to do this.
Axillary Intra-Aortic Balloon Pump Therapy
IABP is a device that helps your heart pump better. It is used most often when your heart is not able to pump enough blood for your body.
Axillary Temperature
An armpit (axillary) temperature is taken by holding the thermometer under your baby's arm. To provide a correct reading, this must be done with care. Use the steps on this handout as a guide.
Ayurveda
Ayurveda is a holistic system of medicine based on the idea that imbalance leads to disease.