Gastroenterology is the branch of internal medicine that focuses on the structure, functions and diseases of the digestive tract.

Gastroenterologists are doctors who specialize in treating conditions of the digestive system, which includes the esophagus, stomach, small intestine and large intestine, as well as associated organs like the liver, pancreas and gall bladder. They consult with patients about their gastrointestinal health and may prescribe medications or recommend nutritional strategies or lifestyle changes to treat or manage conditions. Gastroenterologists also conduct endoscopic procedures, such as colonoscopies. Some specialize in the treatment of particular conditions, such as esophageal disorders, motility disorders or liver diseases.

Gastroenterology is the medical study of the digestive system and related disorders. Problems with the stomach, intestines, esophagus, colon, and bowels are all part of the study of gastroenterology. A gastroenterological specialist has typically spent several years studying internal and digestive medicine in addition to regular medical training. The study of digestive ailments has grown immensely with the development of modern medical technology, allowing specialists in this field a multitude of diagnostic and treatment options that were completely unavailable before the 20th century. The health of the digestive system is crucial to whole body wellness. An improperly functioning digestive system can inhibit proper nutrition, slow down food processing, and lead to system toxicity due to the improper management of bodily waste. Gastroenterology is concerned with the diagnosis and treatment of almost all digestive issues, including various forms of cancer, organ damage, ulcers, and abnormally operating digestive and waste systems.

Gastroenterology is the study of the normal function and diseases of the esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder, bile ducts and liver.

A gastroenterologist needs to have a detailed understanding of the normal physiology of all the above mentioned organs as well as motility through the intestines and gastrointestinal tract in order to maintain a healthy digestion, absorption of nutrients,  removal of waste and metabolic processes.