The maturation period is the best time for surgical treatment of scarring caused by trauma and surgery, if surgical treatment is required, in the absence of dysfunction. Usually after six months or one year after surgery or trauma, the scar softens and basically matures and no longer changes. Surgery is contraindicated for hyperplastic and contractural scars during their proliferative and contractural phases. Surgery should be carefully avoided during the hyperplastic and contracture decompensation period. Abrasion should be performed in late fall, when the weather turns cold and the sunlight is no longer strong, which is beneficial to avoid hyperpigmentation of the abraded wounds after scab removal. Female patients surgery should avoid menstruation. Of course, the timing of the operation, first of all, the first point is that it should be carried out in the basic health of the body, which is the most important.