General surgery is general surgery, and general hospital surgery includes orthopedics, neurosurgery, cardiothoracic surgery, urology and so on. Some hospitals even divide general surgery into cervical breast surgery, gastrointestinal surgery, hepatobiliary, pancreatic and splenic surgery. There are anorectal surgery, burn plastic surgery, vascular surgery, pediatric surgery, transplant surgery, nutrition and so on. Generally speaking, general surgery includes the following diseases: 1. Neck diseases, such as neck injuries and thyroid diseases. The second is breast diseases, such as breast cancer. Third, peripheral vascular diseases, such as varicose veins of lower limbs. Fourth, abdominal wall diseases, such as inguinal hernia. Five, abdominal emergency, such as trauma, peritonitis, gastrointestinal bleeding, etc. Six, gastrointestinal diseases, such as gastric perforation, appendicitis, intestinal obstruction, gastric cancer, colon cancer and so on. Anorectal diseases, such as hemorrhoids, anal fistula and rectal cancer. Eight, hepatobiliary pancreatic spleen diseases, such as liver cancer, cholecystitis, gallstones, pancreatitis, portal hypertension, splenomegaly, etc. Nine, others, such as congenital abdominal diseases in children, retroperitoneal tumors, etc. In addition, general surgery is closely related to the basic knowledge of surgery, such as wound repair, burns, electric injuries, animal bites, surgical infections, tumors, shock, aseptic principle, blood transfusion, body fluid balance, enteral and parenteral nutrition, critical organ failure, ICU, transplantation, microscopic examination, reduction, body surface tumors and so on. In some hospitals, anorectal, burn plastic surgery, vascular surgery, pediatric surgery, transplant surgery and nutrition were originally developed from general surgery.