Postoperative symptoms such as congestion, edema, skin numbness, subcutaneous induration, etc. It will appear after 1 and liposuction and slimming surgery, and generally subside in 1~2 weeks. (1) There is subcutaneous congestion in the suction area after liposuction, which is usually the heaviest in 3~4 days, and subsides in 7~ 14 days, which can last for more than 20 days in the elderly. ⑵ After liposuction of subcutaneous induration, some induration can be touched or the whole aspiration site becomes hard, which is caused by subcutaneous tissue injury, scar nodule formation or hematoma organization and fat liquefaction; Generally, it will be absorbed and softened within three months to six months. The subcutaneous induration of some patients lasts for a long time. ⑶ After liposuction for edema, excessive fluid storage in extracellular space can lead to edema, which is caused by increased capillary filtration and lymphatic reflux disorder. The calf is the most serious and lasts for a long time, and gradually fades within half a year; The edema in other parts is mild and subsides quickly. (4) Skin numbness or pain may occur after aspiration, which is caused by temporary traumatic sensory neuritis. Generally, it is a temporary phenomenon, which can be gradually restored within 3 months to 6 months. 5. Pigmentation Some patients have pigmentation in the skin of the suction area after operation, which is caused by hemosiderin deposition or increased melanin in epidermal cells, and can gradually disappear within a few months. When the pigmentation lasts for a long time, decolorizing drugs such as hydroquinone cream, Banco cream or kojic acid cream should be used. [6] The incision of liposuction for skin scar is generally around 1cm, and the scar is not obvious; There is a small scar at the puncture site of syringe liposuction, which can gradually disappear after 1~2 years. 2. Those who are not satisfied with the effect after liposuction can be corrected again after 6 months to 1 year.