Cryolipolysis waist surgery uses the characteristics of fat cells that are afraid of cold, using a special probe vacuum negative pressure to attract the fat layer, continuous cooling to below 4 ℃, so that the fat cells age prematurely and die one after another, while the blood vessels, nerves, muscles and other low sensitivity to low temperature can not be affected, so as to achieve the elimination of fat cells without damaging the surrounding tissues. Although there are fewer adverse events in the clinic, the surgery still has certain surgical risks, as follows: 1, improper temperature control frostbite skin, numbness, bruising, redness and other phenomena, mild frostbite can be recovered in a few days, and in severe cases, it may cause permanent damage and even leave scars; 2, the effect is not long-lasting, and it may rebound after one year; 3, cryolipolysis can cause a large number of liver cell death, burden on the liver; 4, blisters appear on the skin after the surgery, which is a manifestation of frostbite, and will be gradually absorbed under normal circumstances, but if the area is large, it will affect daily life, and you need to go to the hospital for treatment. Excessive freezing of deep tissues or skin frostbite leads to tissue adhesion, deep unevenness, depression, local nerve damage, pain pulling and hyperpigmentation. The above conditions are mostly caused by irregular or unskilled operation of doctors. In addition, patients with contraindications to treatment, such as a history of cryoglobulinemia, poor peripheral circulation, pregnancy, extensive eczema or dermatitis, etc., if this treatment is carried out, other more serious adverse reactions other than those mentioned above can occur, so it is recommended that candidates must inform the doctor of the history of the medical condition before the operation, and it is best to choose the regular health care institutions.