There are two main types of nevus treatment, one is laser treatment and the other is surgical treatment, the indications, advantages and disadvantages are as follows: 1, laser treatment: mainly applicable to nevi below 2mm, determining that a single performance can completely remove the lesion, the advantage is that it can be done as you go, and the recovery after the operation is faster; 2, surgical treatment: the indications are wider, applicable to various sizes and conditions of the lesion. At present, the mainstream treatment recommended surgery, the advantage is that once can be removed cleanly, and can be taken to send specimens for pathological examination, according to the pathological results of further processing. There are various surgical methods, such as direct excision and suture to flap transfer, expanders, and even skin grafting. Depending on the size and presentation of the lesion, the treatment plan should be further determined at the outpatient clinic.