Lasers can generally be used to improve the appearance of scars, but they cannot get rid of them completely. Scars are generally referred to as keloid scars, which is a collective term for the appearance of skin tissues and histopathological changes after trauma, and are mainly divided into conventional keloid scars, hyperplastic keloid scars, keloid scars, and so on. The presence of keloid scars in the body can usually be improved by laser, but once the scar appears, it will not be eliminated, and laser treatment can only improve the appearance. The lasers commonly used to treat keloid scars include carbon dioxide laser, erbium laser, etc. Through the photothermal effect of laser to stimulate the local keloid scars, so as to regenerate and remodel the collagen of subcutaneous tissues, and then make the keloid tissues soften and flatten out, so as to achieve the clinical effect of keloid scars repair. If you have keloid scars that need to be treated, please go to a regular hospital in time and choose the appropriate treatment method under the guidance of a specialist.