The branch of medicine that studies the functioning of the digestive system and its disorders is known as gastroenterology. It is mainly concerned with the disorders that affect the gastrointestinal tract, including organs from mouth to anus, along the alimentary canal. Hepatology is a subset of gastroenterology. It is concerned with the study of liver, gallbladder, bile ducts and pancreas. Physicians who are a specialist in the field of gastroenterology are known as gastroenterologists. They usually perform procedures like, endoscopy, colonoscopy, liver biopsy, endoscopic ultrasound and endoscopic retrograde cholangiancreatography to diagnose and treat gastrointestinal diseases. The topics included in this book on gastroenterology are of utmost significance and bound to provide incredible insights to readers. It explores all the important aspects of gastroenterology in the present day scenario. Doctors, researchers and students actively engaged in this field will find this book full of crucial and unexplored concepts.