Cleft lip scars may not be completely eliminated, but the appearance of the scars can be improved by applying scar removal creams, surgery or laser treatment. 1. Scar removal creams: Mostly used in the early stage of postoperative scars, such as mucopolysaccharides polysulfate cream, compound heparin sodium allantoin gel, silicone gel, asiaticoside cream, retinoic acid cream, and hydroquinone cream, all of them have the effect of promoting the softening of scar tissues and inhibiting the overgrowth of fibrous tissues at the scars, and among them, retinoic acid and hydroquinone cream have the effect of inhibiting the melanin synthesis of melanin by the melanocytes. 2. Cleft lip second stage repair surgery: the original scar margin can be used as the entry route to remove the most obvious scar tissue, and the skin and subcutaneous on both sides can be separated and loosened to reduce the tension and avoid contracture or hyperplasia of the scar again. However, due to the individual’s physical condition, there is also a possibility of producing obvious new scar after the surgery. 3. Laser treatment: Intense pulsed light or fractional laser can be used for treatment, through a specific wavelength to promote the skin to produce new collagen, to achieve the effect of lightening the old scar. Generally, a certain course of treatment is needed to achieve the ideal state of repair and results. It is recommended that patients who are willing to improve go to a regular medical institution for treatment.