Scars on the legs are often referred to as scar tissue left behind after healing of localized skin injuries. Once scarring occurs, it is impossible to remove it completely, and it can be improved by medication, laser treatment and surgical excision under the guidance of a doctor. If the scar tissue is newborn and still in the proliferation stage, topical medication can be used to inhibit scar proliferation, such as cumeneoside ointment, silicone gel, etc., which can improve the appearance of the scar by inhibiting the proliferation of keloid scars. Improvement can be made by combining photoelectric treatment modalities such as carbon dioxide laser, erbium laser and dye laser. It is recommended to choose the appropriate laser mode and capability to avoid localized thermal burns or causing more severe scarring. In addition, if the scar on the leg is old and the above treatments are not effective, scar revision surgery is feasible. However, the surgery is an invasive treatment, so be wary of the possibility of re-forming the scar. As each person’s constitution is different, the treatment effect varies from person to person. Patients with treatment hospitals are advised to go to the plastic surgery department of regular hospitals, and choose the appropriate treatment method according to individual conditions. Need to pay attention to hygiene, keep local skin clean. Diet should avoid spicy stimulation, avoid sun exposure.