Clinical common surgery includes: general surgery (thyroid surgery, breast surgery, hepatobiliary and pancreatic surgery, gastrointestinal anorectal surgery, etc. ), urology, orthopedics, neurosurgery, plastic surgery, cardiothoracic surgery, pediatric surgery, etc. Ophthalmology, stomatology, otolaryngology, obstetrics and gynecology and so on. Internal medicine is a comprehensive and wide-ranging subject in clinical medicine. With the development of medicine, infectious diseases, nervous system diseases, mental diseases and occupational diseases have been separated into independent disciplines. General respiratory system, circulatory system, digestive system, urinary system, hematopoietic system, endocrine system, rheumatic diseases, diseases caused by physical and chemical factors and the above diseases all belong to internal medicine diseases.