Hair on the face is usually a type of hirsutism. Especially in adolescence, the phenomenon of facial hair growth or increased body hair is generally related to the androgenic hormones in the body. Because androgenic hormone is strong, will stimulate the skin dermis superficial layer of hair follicle proliferation, or hair growth, there may be more hair on the face, or even darkening symptoms. In this case, the patient will be relieved automatically after passing puberty and the hair will fall off automatically. However, some people still do not shed, or still grow on their face and become darker and longer, they need to be treated promptly, and can be treated by destroying the hair follicles using electrolysis.