Dermabrasion surgery may have the following sequelae: 1, edema: it is a relatively common complication after dermabrasion, but it is mostly mild, and it can subside by itself after 3-6 weeks of rest; 2, skin redness: it is the first complication after dermabrasion, and its duration of existence varies from person to person, and it can usually subside within 1-3 months; 3, milia: it usually occurs in the 2-6 weeks after the operation, and it can disappear if the contents of the skin are extruded out by the sterilized needle; 4, cutting injury: cutting injury is a problem sometimes encountered in the operation, and it can be sutured immediately at that time during the operation; 5, scarring: when the skin has been grinded more, it is usually left behind; 5, scarring: when the skin has been grinded more, it is usually left behind. Cutting injury: Cutting injury is sometimes encountered in the operation, the operation can be sutured immediately, usually without scarring; 5, scarring: When the skin is ground deeper, scarring may occur, so be sure to pay attention to the depth of its control; 6, infection: After the grinding surgery, sometimes infections, should be noted, and antibiotics should be used when necessary; 7, hyperpigmentation: More than 90% of the people will experience hyperpigmentation. Hyperpigmentation: more than 90% of people will have hyperpigmentation, but it is temporary, and it can be slowly faded in 3~6 months after surgery. Less sun exposure and taking vitamin C can reduce the role of pigmentation. In the implementation of dermabrasion, scarring should be avoided, postoperative redness and hyperpigmentation of the affected area is a greater burden on the mind of the patient, in order to solve this problem, experimental grinding of a part of the lesion first, observe 3 to 6 months and then do a larger range of grinding.