Cryolipolysis is a non-surgical low-temperature instrument for weight loss. It takes advantage of the fat’s intolerance to cold and passes the freezing wave through the 4℃ low-temperature therapeutic device to the area with more fat, the oil in the fat cells will crystallize faster than normal cells in general. After one treatment, the crystallized fat will gradually apoptosis and metabolize by itself, and the remaining fat cells will be rearranged to reduce the thickness of the fat, so as to make the body curves more obvious. Cryolipolysis back slimming procedure may lead to infection, nerve damage, skin pigmentation, and even deep adhesions and skin necrosis. Patients will have a discomfort of being pulled in the first 10 minutes, once the treatment area is cooled down, patients can’t feel any pain, after that there will be temporary redness, bruising, soreness and numbness in the treatment area, but these discomforts will gradually disappear in 1-3 weeks. Usually the results can be seen within 2-4 months after the treatment, and it does not affect the normal life and work after the operation. Some experts have questioned this new method of weight loss, arguing that metabolizing large amounts of necrotic fat cells through the body naturally is a serious burden on the liver, so people with liver problems would be better off not trying this. In addition, do not take a shower on the day of the surgery, and you should not eat spicy or fatty foods in the near future, and eat small meals.