There is white spot on the arm, how to judge whether it is vitiligo?

Vitiligo is a common pigmented skin disease, characterized by melanocyte loss and leukoplakia. There is no gender or racial difference, which mostly occurs in childhood or adolescence, 50% of which occurs before the age of 20 and 25% before the age of 14.

Some patients with vitiligo are not sure whether they have vitiligo or diseases similar to tinea versicolor at the initial stage, which can be judged from the following three points.

①? Acquired leukoplakia: In the early stage of vitiligo, leukoplakia is coin-sized or smaller, which is neither painful nor itchy and unevenly distributed. But this kind of white spot will sting in the sun and sometimes blister.

② Decolorization degree: The lesion discolored in spots, generally milky white or light pink, with smooth surface and no rash. With the development of the disease, the white spots on the skin surface will become more and more obvious, from the original blurred boundary to more and more clear.

3 hair turning white: the symptoms of vitiligo will be manifested in all parts of the body. In addition to white spots on the skin, the hair on the body will turn yellow and white, which is the phenomenon of vitiligo decoloration.