I. Incision management: Nowadays, more and more patients are discharged from the hospital 5-7 days after surgery. As most of the incisions need to remove the sutures (a few intradermal sutures are exempted from removing the sutures), it is usually necessary to return to the hospital or the nearest medical institution to remove the sutures. During this period, the incision will still be swollen and hot, and you will need to observe the incision site for oozing fluid, blood, and other abnormalities when you return home. If there is, you should contact the surgeon or go to the local hospital for examination. The stitches will be removed 14 days after surgery, and if healing is normal, the outer gauze will be removed 2-3 days afterward. Some patients will keep the incision dressing for a long time, which is unnecessary. After removing the gauze, the clothing will rub against the incision and there will be slight discomfort, which is not a cause for concern. Appropriate rubbing will form a desensitization effect, the recovery will be faster. Generally speaking, you can take a shower a few days after surgery, and it is best to wrap the incision area with plastic wrap. After removing the stitches, the incision area has a hard skin scab, do not use your hands to hard uncover. You can apply a thin layer of vegetable oil and let it fall off naturally. Second, according to the National Guidelines for Prevention and Control of Thrombosis in Major Orthopedic Surgery, the doctor will ask the patient to insist on taking anticoagulant drugs, such as rivaroxaban and aspirin, after discharge from the hospital. Please be sure to follow the doctor’s instructions. If you were taking aspirin before surgery for cardiovascular disease, then keep taking it (consult your physician). If you are not taking aspirin before the surgery, it is better to take it for two months after the surgery. Third, about the lower limb edema: many patients in about two months after surgery for lower limb edema, mainly in the ankle and calf parts, and more in the afternoon performance is obvious, the morning to reduce or subside. This is due to the destruction of the vascular network, weakening of the muscle pump and obstruction of lymphatic fluid return caused by knee surgery. It usually recovers gradually. If it is serious, you can consult your doctor and take Mai Zhi Ling, blood circulation tablets, and elimination of the stops will help (specific consultation with the doctor’s recommendation). Fourth, about rehabilitation training: when discharged from the hospital, the doctor will tell the patient what kind of rehabilitation training to do after going home. Generally speaking, as long as you follow some of the methods used during hospitalization, you can stick to the exercises. The rehabilitation period of knee replacement surgery is relatively long, which requires patients to have hard will and help from family members, but if they rely on other people’s help and lack initiative, the effect will be reduced. My experience is that the more spirited and active the patient is after surgery, the faster the recovery and the better the results. Adherence to exercise, knee flexion to more than 120 degrees, fully extended, is the pursuit of every patient’s goal. Fifth, follow-up: this issue is very important but often ignored by patients and their families. Let me tell you the benefits of maintaining friendly contact with the surgeon frequently within three months after surgery: 1, timely understanding of the progress of rehabilitation training and get guidance; 2, answer the discomfort that occurs during the rehabilitation training, such as pain, numbness, insomnia and other problems; 3, the use of medication and management.