Medical gastroenterology deals with the diagnosis, prevention, and treatment of health issues affecting the digestive system and liver. An expert gastroenterologist treats disorders like acid reflux, ulcers, irritable bowel syndrome, hepatitis C, polyps, jaundice, chronic hemorrhoids, jaundice, etc., Besides diagnosis, a medical gastroenterologist also performs biopsies, endoscopic examinations, and treatments for other broad range of conditions.