Birthmark refers to congenital benign skin abnormalities, different types of birthmarks with different methods to remove, the main treatment means are drug therapy, laser therapy and surgical excision. 1. Drug therapy: such as propranolol, timolol, mainly for the treatment of vascular birthmarks, such as infantile hemangioma, etc., can effectively prevent the growth of hemangioma, reduce the area of hemangioma, in preparation for surgical eradication. 2. Laser therapy: Using the selective photothermal principle of laser, the pigment particles will be decomposed after absorbing the energy, or the hemoglobin in the blood vessels will absorb the energy to destroy the blood vessels, so as to achieve the purpose of removing birthmarks. Q laser and picosecond laser are commonly used to treat pigmented birthmarks such as coffee spot, Mongolian spot and nevus of Ota, or pulse fuel laser is used to treat vascular birthmarks such as nevus of bright red spot. 3. Surgical excision: the most rapid and thorough treatment method. It is suitable for those birthmarks which are not effective after the above treatments or have the possibility of malignant transformation. If the area of excised skin is large, it is necessary to bury an expander to get enough skin tissue for skin grafting before operation. It is recommended that patients with birthmarks go to a regular hospital in time, after a clear diagnosis, under the guidance of the doctor to follow the doctor’s instructions for standardized treatment.