Gastroenterology is a branch of medicine based on the diagnosis of diseases related to the digestive system. It examines the normal function and diseases of the esophagus, stomach, small intestine, colon and rectum, pancreas, gall bladder, bile ducts and liver. It can be said that diseases affecting the gastrointestinal system, in which organs from the mouth to the anus are located along the alimentary canal, are the focus of this specialty. Gastroenterology focuses on the physiology of the gastrointestinal organs, including the movement of food in the stomach and intestines, the digestion and absorption of food into the body, and the removal of waste from the system. It plays an important role in diagnosing common and important diseases such as colon polyps and cancer, hepatitis, reflux, ulcer, colitis, gallbladder, nutritional problems, and bowel syndrome. In essence, all normal activities and disorders of the digestive organs are a part of Gastroenterology. Physicians working in this field are called Gastroenterologists.
Hepatology is a branch of medicine that examines the functioning of the liver, gallbladder and pancreas organs, which are the largest organs of the body, and the diseases that affect them. It occurs in the diagnosis and management of diseases. It performs studies including, but not limited to, acute and chronic hepatitis, viral hepatitis, cirrhosis, genetic and metabolic liver diseases and their complications, liver cancer, liver transplantation, drug metabolism and immunology. The term hepatology is derived from the Greek words “hepatikos” and “logia”, meaning liver and study, respectively.