The most important thing is that the anal area is white, which may be caused by the following conditions: 1, may be perianal eczema, which is a skin perversion of the perversion, will appear scattered papules or papules, mainly characterized by local itching, rash is polymorphic, secretion abnormal exudation, and after scratching will appear ulceration, also appear perianal white situation. 2, may be perianal albinism, this disease In addition, there may be a wound here, the wound recovery period, the skin color is more tender, the best can go to the hospital for examination.