The common causes of uneven skin color on the face include physiological factors, vitiligo, simple chaffing and so on.
1. physiological factors: generally long-term exposure to ultraviolet radiation, melanin deposition on the skin, will be manifested in the face of uneven skin color; in addition, long-term late at night or tired, the body metabolism is not good, easy to lead to the face of local darkness, can appear on the face of uneven skin color.
2. Vitiligo: the cause of vitiligo is unknown, may be a combination of factors, such as autoimmunity, oxidative stress, melanocyte self-destruction, neurochemical factors, etc., manifested in the skin and mucous membranes with white patches, can be round, oval, irregular shape, etc., occurring in the face, it seems to be uneven skin color.
3. simple furfura: that is, white furfura, its etiology and pathogenesis have not been clarified, may be related to infection, malnutrition, dry skin, strong sun exposure and other factors, manifested as a round or oval hypopigmented patches of unclear boundaries on the skin, coated with thin furfuraceous scales, may be accompanied by itching and other symptoms, occurring in the face, can be manifested as uneven skin color on the face symptoms.
It is recommended that if patients can exclude physiological factors, they need to go to the dermatology department of the regular hospital in time, follow the doctor’s instructions to clarify the diagnosis, and actively treat the disease to avoid delays.