Cryolipolysis is a surgical procedure that uses a machine to suck up the fat and freeze it for one hour, utilizing the low temperature to freeze the cells and cause apoptosis, accelerating the natural death of the fat cells, and the dead fat cells need to wait for 1-2 months before they are metabolized by the liver and discharged, in order to achieve the effect of fat elimination. Compared with thermal therapy, the treatment is more comfortable, with less postoperative discomfort and fewer side effects. Cryolipolysis only reacts on the surface of the skin and will not harm blood vessels and skin. As long as you choose to undergo this procedure in a regular hospital, the complication rate can be greatly reduced, but there are still some surgical risks, such as over-freezing of the treatment area resulting in damage to superficial and deeper tissues leading to necrosis of the skin, etc., erythema, hardening, short-term bruising, and heightened sensation in the treatment area. The most serious adverse reactions are reverse hyperplasia, i.e., typical mild erythema, pain and discomfort after treatment, progressive, non-compressive growth of tissue adhesions in the treated area, deep unevenness, depression, local nerve damage, painful pulling, and hyperpigmentation. These situations are mostly caused by the doctor’s poor operation, the use of the instrument is not skilled enough, or even the patient’s own existence of certain surgical contraindications. Therefore, it is recommended that candidates seek professional medical help from a professional medical institution, so that the success rate and safety of the operation can be more guaranteed.