Birthmarks will appear when we are born. Although birthmarks have no effect on our health, they will accompany us all our lives. If they grow on our faces, their appearance will be greatly affected. So many people will choose laser to remove birthmarks. So? If you have a birthmark on your face, it will be ugly, and freezing, electrocautery and surgical removal will generally leave scars, so now doctors generally recommend that you use laser to remove birthmarks. Will the birthmark be scarred by laser? Laser removal of birthmarks is based on the principle of selective photothermal, which directly reaches the diseased tissue and destroys melanocytes. Laser treatment is very accurate, and will not accidentally injure the surrounding normal tissues. For this reason, the chance of scarring is very small. Laser birthmark removal is generally carried out in stages, and the area of birthmark, personal skin condition and skin's own bearing capacity should be considered during treatment. Therefore, usually only part of the pigment can be removed at a time, because the diseased pigment is three-dimensionally distributed in the skin. To achieve the desired effect, it usually takes 3-5 treatments, and the interval between each treatment needs more than 3 months. Because swallowing and removing broken pigment is a slow biological process, it usually takes 1-3 months. If you don't consider the endurance of the skin, if you want to remove the birthmark at one time, it is likely to leave a scar. Let the experts give you detailed answers.