General surgery is mainly the surgical treatment of gastric and duodenal ulcers or gastric cancer, but also includes acute appendicitis, intestinal obstruction, intestinal fistula, colorectal cancer or common rectal and anal diseases, treatment of portal hypertension, primary liver cancer, Hepatic abscess, as well as cholelithiasis, biliary tract infection, biliary tract tumor, and differential diagnosis of acute pancreatitis and acute abdomen.