Vitiligo attack time specifically the following kinds of situations: 1, spring, summer, vitiligo is more likely to recur, winter ultraviolet intensity is slightly weaker, seasonal alternation, clothing may slowly reduce, while the natural ultraviolet rays will also slowly enhance, this situation patients may appear recurrence; 2, in addition to with the environment, with people work and rest and mental state is also very relevant, emotional tension and anxiety will prompt vitiligo aggravation 3, itself has other basic diseases, such as autoimmune thyroiditis or hepatitis B, thus leading to the occurrence of vitiligo, at this time it is recommended that patients must control the basic disease.