what does a gastroenterologist diagnose
Gastroenterologists have extensive training in the diagnosis and treatment of conditions that affect the esophagus, stomach, small intestine, large intestine (colon), and biliary system (e.g., liver, pancreas, gallbladder, bile ducts). Gastroenterology is a subspecialty of internal medicine. gastroenterology fellowship is an intense 2- or 3-year program, during which the physician receives extensive training in diseases and conditions of the digestive tract.