If gray hair is caused by age factor, it is generally irrecoverable; if it is caused by mental stress, it can be recovered after reducing the stress, and if it is caused by vitiligo, it needs to be treated with medication. Gray hair can be caused by aging, which is a normal physiological phenomenon, generally without treatment. There is no special treatment for gray hair caused by genetic factors. If there is too much mental stress, a small number of people will also appear the phenomenon of long white hair, white hair less generally remove the mental stress factors can gradually return to normal. If there are disease factors such as vitiligo, appropriate treatment is needed, such as topical or oral glucocorticoids, calcium-modulated phosphatase inhibitors, or occasional use of vitamin D analogs. Although vitiligo can be treated, it is difficult to predict the course of the disease or how long the repigmentation will last, and a few patients may gradually return to normal. If the phenomenon of abnormal increase in white hair, go to the regular hospital in a timely manner to check the cause of clear symptomatic treatment, the use of the above drugs should follow the doctor’s instructions, so as not to cause adverse consequences.