Gastroenterology emphasizes on digestive system and its disorders which includes alimentary canal. It involves a comprehensive understanding of the physiology of the gastrointestinal organs, including the motility of food through the stomach and intestine, the digestion and absorption of nutrients into the body, removal of waste out of the system, and the function of the liver as a digestive organ. Advancement in the diagnosis and treatment of gastrointestinal diseases has been noteworthy in the recent years. The investigation is going on with the new diagnostic procedures and novel therapeutic approaches for gastroesophageal reflux disease (GERD), pancreaticobiliary and post-surgical problems, Barrett’s Oesophagus, neuroendocrine tumours, and gastrointestinal stromal tumours.