Surgical diseases are diseases that can be treated best through surgery or manipulation. Surgical diseases involve a wide range of contents and are broadly divided into seven categories: first, injuries, damage to human tissues and organs caused by violence or other pathogenic factors, such as liver and spleen rupture, fractures, etc. Second, infection, microbial invasion of human organs, damage or destruction of tissue, clinically very common are purulent appendicitis, liver abscess, etc.. Third, tumors, most benign and malignant tumors, require surgery to achieve the purpose of treatment. Deformities, congenital deformities, such as cleft lip, congenital heart disease, etc., all require surgery. Endocrine dysfunction, such as hyperthyroidism and hyperparathyroidism, etc. Sixth, parasitic diseases, such as hepatic echinococcosis and biliary roundworm. In addition, obstructive diseases such as intestinal obstruction, urinary tract obstruction, and varicose veins, portal hypertension, cholelithiasis, etc., all require surgical treatment.