Pigment of this the ill caustic that it is a skin is taken off completely break, show porcelain white spot, blaze size shape is differ, the state is clear, brim coloured element is ad cool-headed increase, without self-conscious symptom, after insolating easy occurrence erythema, even bleb, have burn self-consciously after painful, inflammation, blaze can compare former hair range is big, leather damage can happen at any place, but commonner reach its at pointing to neck of back, wrist, antebrachium, face, genital all round. Blaze constant semmetry or odd side distributing, be like even banding along innervation. Head blaze brim does not have pigment ad cool-headed area, or have white hair occasionally and do not look to give blaze. Some blaze but proper motion subsidise, a few patients are after summertime insolation, blaze center or brim pigment second birth, but to winter pigment but subsidise. Partial patient can be accompanied mucous membrane pigment drops to see more with lip, take second place of external genital organs, be put into trouble of Yi Ke of element of hint given with the eyes, but do not affect vision commonly, wind of white purplish or white patches on the skin of this kind of mucous membrane is different from the mucous membrane blaze that says normally.