The causes of increased gray hair are complex and many factors have been found to have a close correlation with increased gray hair, as described below: First, it is believed to be age-related, as old age can cause an increase in gray hair. Second, if excessive mental tension, anxiety and depression, etc., can also cause an increase in gray hair. Third, inadequate nutrient supplementation, such as lack of vitamin A, vitamin D, etc., or lack of certain essential minerals, such as zinc, calcium, phosphorus, iron, etc., can also cause an increase in gray hair. Fourth, the patient does not rest well, often stay up late, for the increase of gray hair is also relevant. Fifth, we should pay attention to patients with certain underlying diseases in the body, such as diabetes or adrenocortical insufficiency, which may cause an increase in gray hair. Sixth, certain diseases on the skin, such as vitiligo, may also involve white hair.