There are many ways to treat pigmented moles, including surgical excision, chemical peeling, liquid nitrogen freezing, laser, electrocautery, microwave, and many others. Although all methods are effective, they are different for different individuals, different parts and different moles, so we can choose the best among them. 1.Surgical excision is the first choice for pigmented nevus treatment. This method is safe and thorough, and at the same time, the excised tissue can be examined pathologically to exclude malignant changes. The disadvantage is that in special parts of the face, nose, eyelids, etc. or when the lesions are large, skin implants are needed after excision. 2.For pigmented nevus with small lesions, large number of lesions and no malignant change, we can consider applying liquid nitrogen freezing, laser, electrocautery, microwave and other methods, which are simple, convenient and economical, but the lesioned tissues will be “frozen to death” or “vaporized and charred” at the same time of treatment. “It can no longer do pathological examination. In addition, the operator needs to be skillful and to strictly grasp the “fire”, too shallow is easy to recur, too deep will leave scarring. 3. Especially for pigmented nevi suspected of possible malignant transformation, try not to take methods such as electrocautery, laser, freezing, and drug application.