Wind of white purplish or white patches on the skin is one of 3 big chronic and stubborn disease in dermatosis. It is a kind of common disease, frequently-occurring disease. The of all kinds on the world is racial all sorts of nations all but go to the bad. Whole world incidence of a disease is in about 1, 2% the left and right sides.

Our country is in about 1% the left and right sides. The investigation that passes medical scientist discovers a such phenomena: Namely incidence of a disease appears person of the yellow race, black the Caucasian incidence of a disease with kind of person and leather closer look relatively leather color is light white person is tall. Incidence of a disease is in the wind of white purplish or white patches on the skin in the Caucasian such as the United States, France 1% the following, india but 4% , japan is 2% , and our country is in about 1% the left and right sides.