Hirschsprung disease is a rare birth defect. It affects the nerve cells in the large intestine. These nerve cells control the muscles that move food and waste, or stool, through the large intestine. The large intestine is the last part of the digestive tract.

Failure to thrive (FTT) is slow physical development in a baby or child. It's caused by a baby or child not having enough nutrition.

Detailed information on common children's digestive problems, including colic, diarrhea, food allergies, and lactose intolerance

Irritable bowel syndrome (IBS) is a long-term (chronic) disorder that affects the large intestine or colon. IBS causes painful belly (abdominal) and bowel symptoms.

Encopresis is when your child leaks stool into their underwear. It is also called stool soiling. It is most often because of long-term (chronic) constipation. Encopresis happens to children ages 4 and older who have already been toilet trained.

There are many reasons why a child would feel anxious and not want to go to school. Read on to learn more about school refusal.

Dysphagia means trouble swallowing. This condition happens when food or liquids can’t pass easily from your child’s mouth, into the throat, down the esophagus, and into the stomach when swallowing.

Crohn's disease is when there is redness, swelling (inflammation), and sores along the digestive tract. It is part of a group of diseases known as inflammatory bowel disease.

Detailed information on problems in puberty, including precocious puberty, gonadotropin-independent precocious puberty, and delayed puberty

A national program exists to screen all newborns for certain disorders in the first few days of life.