The skin color is actually a large part of the skin secretion of melanin to determine, although ultraviolet light on the skin pigment production to promote the role, but for vitiligo patients should not be too much or too strong sunlight exposure, because this will aggravate the occurrence of white spots, vitiligo patients melanocytes are more sensitive, especially after the spring and summer season strong sunlight exposure may cause the death of melanocytes, will cause the vitiligo The actual fact is that you can find a lot of people who are not able to get a good deal of money from the internet. And we use the UV irradiation method in vitiligo treatment, is filtered most of the harmful light, and weaker, for a single wavelength, can promote the development and regeneration of melanocytes, and pigment production.