URMC / Encyclopedia / Content Search Encyclopedia Digestive Disorders Many digestive disorders require clinical care by a physician or other health care professional. Listed in the directory below are some, for which we have provided a brief overview. Appendicitis Barrett's Esophagus Celiac Disease Constipation Crohn's Disease Diarrhea Diverticular Disease Gas in the Digestive Tract Gastritis Gastroesophageal Reflux Disease (GERD) / Heartburn Gastroparesis Helicobacter Pylori Hemorrhoids Hepatitis Viral Hepatitis Overview Hepatitis A Hepatitis B Hepatitis C Hiatal Hernia Indigestion Inguinal Hernia Irritable Bowel Syndrome (IBS) Lactose Intolerance Peritonitis Stomach and Duodenal Ulcers (Peptic Ulcers) Ulcerative Colitis Medical Reviewers: Kanipe, Jennifer RN, BSN