What is Gastroenterology? Gastroenterology is the branch of medicine that is involved in understanding, diagnosing, and managing diseases of the digestive system. This includes not only the conditions of the mouth, esophagus, stomach, small and large intestines, and rectum, but also of the pancreas, gallbladder, and liver.

Who Practices Gastroenterology?

Gastroenterologists are internists and pediatricians who are board-certified in gastroenterology through fellowship after medical school and residency. In addition to assessing and treating patients in the office, gastroenterologists are also trained to perform endoscopy to diagnose and treat conditions, such as colonic polyps.

Some other conditions they treat include:

  • Hepatitis
  • Pancreatitis
  • Peptic ulcer disease
  • GERD
  • Colon cancer

Source: What is a Gastroenterologist? (n.d.). American College of Gastroenterology. Retrieved May 17, 2022, from