1. Precautions before operation (1) Use swelling anesthesia or intravenous anesthesia, depending on the number of liposuction sites. If intravenous anesthesia is used, water should be fasted at least 6 hours before operation. (2) Smoking was banned two weeks ago and aspirin was banned three days ago. Corticosteroids and other drugs to reduce postoperative wound congestion, elastic corset prepared in advance, bring one when you enter the operating room, so that you can put it on immediately after the operation to reduce postoperative wound congestion. (3) Physical examination is required before operation. If you have heart disease or high blood pressure, you are not suitable for surgery. There is inflammation on the face, which needs to be cured before operation; Women should avoid menstrual period. (4) Work out a detailed liposuction plan with the plastic surgeon. Although the result of liposuction is to reduce the volume of a certain part of the human body and make the fat layer thinner, it must be coordinated with other parts of the body, not to suck as much as you want, and to suck wherever you want. Before liposuction, beauty seekers should communicate and discuss with plastic surgeons in detail, and formulate a comprehensive and detailed liposuction plan to achieve "confidence". 2. intraoperative precautions (1) liposuction should be "a small number of times". Beauty seekers must understand that liposuction should follow the principle of "small amount and many times". Less attraction, less trauma, quick recovery, less pain, no need for general anesthesia, and outpatient service. On the contrary, large-scale liposuction surgery is traumatic, painful and slow to recover, and requires a lot of anesthetic drugs, which increases the risk of anesthesia accidents. (2) Not all parts of the body can absorb fat, but some parts of the body can't, such as the anterolateral calf and forearm. These parts are mainly muscles with little fat. Even if liposuction is done, the effect will not be good, which will easily cause neurovascular damage. In addition, there are still some parts of the human body that must be carefully liposuction, such as the face and calves. Careless operation or lack of experience can easily lead to skin necrosis and uneven problems in these parts, leading to lifelong regret. (3) Find a plastic surgeon with good skills, because the skills and experience of plastic surgeons are directly related to the effect of liposuction. 3. Precautions after operation (1) Keep wearing elastic clothes for 3 to 6 months after operation, and wear elastic clothes 24 hours a week for better shaping. (2) It is normal for the dressing to exude red liquid within 24 hours after operation. Come to the hospital for dressing change the next day. (3) Don't touch the water before the wound is taken out, and take out stitches according to the doctor's advice. (4) ecchymosis often appears within one month after operation, and it can disappear without special treatment. (5) The skin in the operation area will feel numb within 6 months after operation, and it will recover in about half a year. (6) Physical therapy, hot compress and massage can be done 2 weeks after operation to avoid strenuous exercise. (7) Reasonable diet structure to avoid overeating.