Cardiac catheterization is a procedure in which a long, flexible tube (catheter) is put into a blood vessel. The doctor then guides the catheter into the heart to find and treat heart problems.

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.

Detailed information on healthy lifestyle choices for teenagers

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.

Detailed information on viral exanthems (rashes)

Detailed information on viral skin infections, including Herpes Zoster (Shingles), Pityriasis Rosea, Warts, and Molluscum Contagiosum

Skin cancer in children can be treated in several ways. The best choice for your child depends on the size, place, and stage of the cancer, along with other factors.

Tinea versicolor is a fungal skin infection. It’s caused by yeast on the skin. It occurs most often in teens and young adults. But it can happen at any time.

Ringworm is a type of skin infection cause by a fungus. Learn more about this condition, including cause, symptoms, diagnosis, and treatment.

Ticks attach themselves to the scalp, behind the ear, in the armpit and groin, and also between fingers and toes. Find out what to do if you find a tick on your child.