Surgery is an important treatment for surgical diseases, but the unavoidable trauma of surgery and anesthesia can also increase the physiological burden of patients and may lead to complications, sequelae and other adverse consequences, while naturally patients and their families will also suffer a certain degree of psychological stress. Before admission, patients should try to improve the preoperative preparation in order to better cooperate with the treatment to achieve the expected surgical results and shorten the hospitalization time. Patient preparation before admission: (1) Hypertension – need to continue to take antihypertensive drugs to avoid withdrawal syndrome. Control below 160/100mmHg without special preparation. Blood pressure is too high and needs to be controlled, but does not need to be controlled at normal levels. Patients with a history of hypertension and who enter the operating room with sharply elevated blood pressure will have their surgery postponed if necessary. (2) Diabetes mellitus – diabetic patients are in a state of stress during the perioperative period, with complications and mortality rates increasing by 50% compared to those without diabetes mellitus, affecting the healing of surgical incisions, increasing the chance of surgical infections, and increasing complications. Before admission, fasting blood glucose should be controlled to be no higher than 8.3 mmol/L, urine glucose below (++), and negative urine ketone bodies. If necessary, elective surgery should be performed after endocrinology treatment. (3) Heart disease – Patients with heart disease have poor surgical tolerance. They are treated by internal medicine before admission, and after admission, they need surgeons, anesthesiologists and internal medicine physicians to assess the riskiness and decide the timing of surgery. (4) Other patients with hepatic and renal insufficiency need to be stabilized by relevant medical treatment before elective surgery. (5) Prevention of infection: Pre-operative detection of infections and prohibition of more contact between infected patients and patients. Strictly follow the principle of asepsis during surgery. (6) Female patients should avoid hospitalization during menstruation, which will delay the date of surgery. (7) Adaptive exercise: practice correct coughing and coughing, patients who like to smoke better have to quit smoking for 2 weeks. Adjust good psychological state to cooperate with the treatment. For patients with serious medical diseases, it is recommended to control the medical diseases and reach a satisfactory state before surgery, which is the first and foremost guarantee for patients to safely undergo surgery.