Keloid hyperplasia, which is a proliferative scar, is difficult to completely eliminate once formed. Treatment mainly includes general treatment, topical medication, local injection of medication, surgery and so on, which can improve the appearance of keloid scars. 1. General treatment: general treatment mainly includes pressure therapy, which can be carried out with pressure clothing, pressure bandage, pressure pads, pressure masks, etc. It is usually used for a longer time, usually not shorter than 6 months. 2. Topical medication: Topical medication for scarring, including onion extract preparation, silicone gel, etc., can be applied to the treatment of proliferative scarring. 3. Injectable drugs: Injectable drugs, including glucocorticosteroids such as tretinoin injection, are effective in the treatment of hyperplastic scarring. 4. Surgery: proliferative scars with unsatisfactory results of non-surgical treatments and functional and cosmetic damages can be treated by surgery if necessary, such as surgical excision and suturing, scar contracture relaxation, free skin grafting, etc. Once formed, proliferative scars can be treated by surgery. Once formed, hyperplastic scarring is difficult to remove completely. It is recommended to go to a regular hospital and follow the advice of a specialist to choose the appropriate treatment plan.