Hepatobiliary Surgery is specialized in treating liver and biliary diseases with surgery as the main means of treatment; Gastroenterology is specialized in treating digestive diseases with non-surgical treatment as the main means of treatment. 1. Hepatobiliary Surgery: treating liver and biliary tract diseases, such as liver cancer, gallbladder cancer, cholecystitis, liver cysts and other diseases with surgery as the main means of treatment, and some of the Department of Hepatobiliary Surgery also carries out liver transplantation surgery. Hepatobiliary surgery is an important part of modern surgery and has an irreplaceable role. 2. Gastroenterology: non-surgical treatment is the main means of treating digestive system diseases, including esophageal diseases, gastrointestinal diseases, hepatobiliary and pancreatic diseases, and medication and endoscopic operation are the important weapons for treating diseases. Hepatobiliary Surgery and Gastroenterology are both important clinical departments with a broader spectrum of diseases, and if such diseases occur, they should be diagnosed and treated under the guidance of specialized doctors.