Gastroenterology is the study of the normal function and diseases of the oesophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder, bile ducts and liver.
It necessitates a thorough knowledge of the physiology of the gastrointestinal organs and their typical functions, which include the motility—or movement—of substances through the stomach and intestines, the digestion and absorption of nutrients into the body, the elimination of waste products from the system, and the role of the liver as a digestive organ.
It includes prevalent and significant illnesses like hepatitis, gastroesophageal reflux disease, peptic ulcer disease, colitis, gallbladder and biliary tract disease, nutritional issues, irritable bowel syndrome (IBS), colon polyps, and cancer.