Surgeons have different division of labor according to the size of the hospital! The classification of surgeons is basically based on the human body system, not the primary classification. It can be divided into neurosurgery, orthopedics, general surgery, cardiothoracic surgery, tumor surgery, urology, burn plastic surgery and pediatric surgery. If subdivided, orthopedics can be divided into limb joint department and spine department, and minimally invasive (limb replantation) general surgery can be divided into thyroid surgery, breast surgery, vascular surgery, hepatobiliary surgery and gastrointestinal surgery. The working procedure of clinical surgeons is: accepting patients-making diagnosis and treatment plans for patients-implementing diagnosis and treatment measures.