Acne pits usually refer to the depressed scar left behind by the disappearance of acne, and its treatment methods include fractional laser, dermabrasion, hyaluronic acid facial filler and so on. 1. Fractional laser: Through the photothermal effect of laser, it causes small damage in the local area of the scar, restarts the skin’s damage repair process, and promotes the regeneration and rearrangement of collagen in the local area of the skin, so that the depressed scar can be gradually lightened and flattened. 2. Dermabrasion: This procedure is mainly to repair and regenerate the basal cells of the epidermis and the superficial dermis by controlled grinding of the epidermis and the superficial dermis to increase the elasticity of the dermis, so as to achieve the effect of repairing depressed scars. 3. Hyaluronic acid facial filler: Hyaluronic acid is injected into the depressed part of the scar, so that the depressed skin can be supported, so that it can be at the same level with the normal skin, so as to improve the purpose of depressed scar. It is recommended to go to a regular hospital and listen to the professional doctor’s advice for the treatment of acne pits, so as to avoid further damage to the skin caused by improper treatment.