1.About the preoperative examination: blood test will be arranged for you by your doctor in charge and executed by the nurse; X-ray examination is on the 2nd floor of the outpatient clinic, ECG examination is in the Cardiology Department on the 11th floor of the Internal Medicine Building, ultrasound examination is on the 4th floor of the Gastroenterology Building, please move to there by yourself; generally, venography is not needed, but for special patients who need to clarify the deep vein situation, the doctor in charge will take you to the examination. 2.Shower and clean skin one day before surgery. Fasting from food and water for 6 hours before surgery. The operation lasts about 1-2 hours. 3.Anesthesia: generally choose lumbar anesthesia or lumbar anesthesia + epidural, or general anesthesia. Lumbar anesthesia is semi-anesthesia, lumbar puncture, the cost is cheap, the patient remains awake during the operation and can communicate with the doctor. Individual patients have a small lumbar spinal space, which makes puncture difficult and may require multiple stitches. After the operation, patients need to lie flat on the pillow for 6 hours, mainly do not raise the head, very few patients may have headache symptoms after lumbar anesthesia. General anesthesia means general anesthesia, and patients can walk on the ground after waking up from the anesthesia, but it is more expensive, and individual patients may have pain and discomfort in the throat after surgery. Patients under general anesthesia have their heads tilted to the side after surgery to prevent saliva or vomit from being inhaled into the respiratory tract and causing respiratory infections. 4, after anesthesia surgery, individual patients may have short-term digestive function loss, do not want to eat, or even nausea, vomiting. After lumbar anesthesia, routine infusion to supplement nutrition and fluids. After 6 hours after surgery, a small amount of food can be eaten gradually. 5. Elevate the leg after surgery to promote venous return. If you find blood leakage or inadvertently wetting the wound dressing, you should inform the doctor and nurse in time and change the dressing if necessary to prevent the incision from infection. 6, Because saphenous vein surgery is a sterile surgical category if there is no infectious ulcer, there is no indication of using antibiotics. In the postoperative period, varicose vein surgery patients do not need to use antibiotic treatment, at most for patients with longer estimated surgery time, the prophylactic application of antibiotics before surgery. 7.After anesthesia, the lower limbs should be moved as early as possible, and the patient can move the joints passively or actively in bed (with special attention) to promote blood return to the lower limbs and prevent deep vein thrombosis and other conditions. The next day, you can walk on the ground, but you should pay attention to safety. This is very beneficial to increase the breathing depth, restore the gastrointestinal function and improve appetite; it also has a positive role in preventing complications. 8.Some patients are not used to urinating in bed after surgery, or they cannot urinate due to post-anesthesia urinary reflex disorder, so they should inform the doctor and nurse in time, and if necessary, a catheter should be inserted. 9.Patients should wear medical elastic stockings for 3-6 months after surgery. Some patients have mild swelling of the affected limb, ankle numbness and other discomfort, which can be recovered after 3-6 months; some friends may have thrombotic superficial phlebitis, which can be cured after treatment.