Nevus are localized skin pigment abnormalities, which can occur at birth or the day after tomorrow. Healthy people can usually find 15 ~ 20 moles on the skin. Most of these moles are benign and do not need treatment. Growing on the face affects the appearance and can be removed in different ways.

There are several commonly used methods to remove moles: laser method, freezing method, electrocautery method, spot scanning method and chemical agent method.