The child’s gray hair may be caused by the lack of micronutrients, but also because of genetic or vitiligo and other factors. 1. lack of trace elements: if the child often picky, partial food, resulting in long-term nutritional intake, there may be a serious lack of trace elements, such as the lack of zinc or copper elements of the child will be easy to grow white hair. Parents can take their children to the hospital to do trace element testing, need to supplement the relevant trace elements under the guidance of the doctor. 2. Heredity: If the child’s family has the situation of growing white hair in childhood, the child may grow white hair due to genetic factors. 3. Vitiligo: Vitiligo is a skin and mucous membrane pigmentation deficiency disease caused by melanin deficiency, if the diseased part is in the child’s scalp, the phenomenon of long white head may also occur. Vitiligo needs to be treated actively to avoid affecting your child’s appearance. Children with white hair may also be due to other reasons, parents can take their children to the hospital to do the relevant examination, to clarify the cause, to take corresponding treatment measures.