Digestive & Liver Disorders Home The Digestive System - An Overview Diagnostic Procedures Problems in Prenatal Development of the Digestive Tract Tracheoesophageal Fistula and Esophageal Atresia Diaphragmatic Hernia Omphalocele Inguinal and Umbilical Hernia Anorectal Malformations Common Children's Digestive Problems Colic Diarrhea Food Allergies Lactose Intolerance Problems Affecting the Upper Digestive Tract Dysphagia Gastroesophageal Reflux Disease (GERD)/Heartburn Problems Affecting the Lower Digestive Tract Constipation Encopresis Hirschsprung's Disease Irritable Bowel Syndrome Intussusception Intestinal Malrotation / Volvulus Pyloric Stenosis Meckel's Diverticulum Inflammatory and Infectious Disorders Appendicitis Stomach and Duodenal Ulcers (Peptic Ulcers) Helicobacter Pylori Crohn's Disease Ulcerative Colitis Necrotizing Enterocolitis Viruses, Bacteria, and Intestinal Parasites in the Digestive Tract Liver Disorders How the Liver Works Common Characteristics of Liver Disease Biliary Atresia Hepatitis Liver Transplantation Congenital Liver Defects