Nowadays, the level of plastic surgery technology is more and more developed, so the technology of removing birthmarks is also relatively mature. Most hospitals can use laser to remove birthmarks at one time. However, it should be noted that after laser treatment, the affected skin must be kept clean and dry to avoid bacterial growth. After treatment, patients only need to pay more attention to observation. Generally, after a week, the skin can return to normal. Some lasers remove birthmarks without leaving obvious scars.