The reasons for white hair are as follows: 1, many elderly people are white hair, so age is the most important reason for white hair; 2, some people are younger and also white hair, may be related to genetics, such as the patient’s parents, may also have white hair very early, that is, less white head; 3, not the whole hair white, but a piece of white, be alert to vitiligo: vitiligo often also cause white hair, look carefully at the scalp, the The scalp is also white, that is, vitiligo. In conclusion, hair white has physiological, pathological, physiological and pathological must be distinguished, patients should go to the hospital to diagnose. If it is physiological, you do not need to care about it, you can increase the hair nutrition drugs; if it is pathological should be timely treatment, will achieve very good results.