The safest way to remove a nevus (pigmented mole) is to go to a regular hospital for general treatment and surgical excision. 1. General treatment: most nevi are ordinary pigmented moles, which generally do not need special treatment. If it affects the aesthetics, you can use cosmetics to cover it up. 2. Surgical treatment: for nevi that appear on the soles of the feet, groin, armpits and other locations where friction or injury is relatively easy, you need to use surgery to excise them, basically, surgery can be a complete excision, and is not easy to recur, but there is a risk of scarring. When a nevus appears, it is safer to use the above methods to remove the nevus; some smaller pigmented nevus can consider using laser treatment, but laser treatment may not be able to completely eliminate the pigmented nevus, and it may also stimulate the melanocyte nests, leading to active proliferation, which may increase the risk of malignant changes. Appearance of nevus, should go to a regular hospital, under the guidance of the doctor to choose the appropriate treatment program.