The best time to remove scars from wounds is when they are in the hyperplasia and stabilization phases, usually the hyperplasia phase of scars is 1-3 months after wound recovery, and the stabilization phase is mostly after 1 year. During the proliferative phase, scars will have a reddish color, obvious pain and itching, and active proliferation, and then enter the receding phase. For the treatment of hyperplastic scars, steroid injections can be used to reduce inflammation and inhibit the growth of scars. Radiotherapy and chemotherapy can also be used to inhibit scar proliferation, which is more effective for early stage scars. For scars that are relatively large in size and difficult to treat, surgical excision and other related treatments can be adopted according to the patient’s wishes. For atrophic scars, surgical excision or laser treatment can be applied to promote skin collagen regeneration to achieve the treatment purpose. If the scars have formed scars, conservative treatment such as local injections of glucocorticoids, interferon, and other medications can be used. Compression therapy with compression bandages and cryotherapy with freezing agents can also be applied. Surgical excision of the scars can also be used as a treatment.