It is better to use laser to remove moles. Using the instantaneous huge energy of laser to act on nevus cells or melanocytes, the pigment is decomposed and phagocytized and excreted by macrophages, so as to achieve the purpose of removing nevus. It can selectively eliminate pathological changes, and normal tissues are not affected, so the treatment is very safe, and no scar will be left after treatment, and the physiological function of normal body will not be affected. This treatment is non-invasive and will not damage the skin.