Scar is a disorderly change in the appearance of normal skin tissue caused by human trauma, mainly formed by the proliferation of skin fibrous connective tissue filling, connecting, supporting and protecting the surrounding normal scalded scar tissue at the wound healing area after various external traumas to the skin tissue. The cost of scar repair varies from a few thousand dollars to ten thousand dollars or more depending on the size of the scar, the location, and the treatment method. There are many methods of scar repair, mainly divided into non-surgical treatment, surgical treatment, and comprehensive treatment. Among them, non-surgical treatment includes laser, medicine, freezing, physical, rehabilitation and other treatment methods. Surgical treatment includes scar excision, post excision skin slice, split excision, other tissue grinding, tissue expander, transplantation, etc. Combined treatment includes, radiation, sports and physical therapy, medication and physical therapy, or post-surgical medication-assisted treatment. Laser treatment is the treatment of scars with the help of laser’s burning, vaporizing, cutting and other special. Drug therapy is to inject the scar locally or make a cream or ointment to apply or paste on the scar. Radiation therapy is the use of radiation to irradiate scars to damage them and thus resist scar growth. To repair scars, you must go to a regular hospital for a systematic examination and then the doctor will make a treatment plan according to the specific condition, and you should never rush to the doctor.