Old scars can be removed by laser treatment or surgery. 1. Laser treatment: If the area of old scars is relatively large, you can choose laser treatment, laser stimulation of subcutaneous collagen growth, skin elastic fiber rearrangement, so as to achieve the purpose of fading old scars. 2. Surgery: If the old scars are very large and the overall scar proliferation is more obvious, then you can choose surgery to remove the excess hyperplasia scars, and then fine sutures, which can make the old scars look more even, and if necessary, with skin grafting. Old scars need to go to the hospital to take regular treatment, it is recommended that patients go to the hospital in a timely manner, in accordance with the doctor’s instructions to take standardized treatment, do not take the treatment, so as not to lead to adverse consequences.