Infant long gray hair may be genetic, physical disease, malnutrition and other factors. 1. Heredity: if the child white hair is relatively more, and there are patients with less white head at home, this means that the baby long white hair may be caused by heredity, may be the child long white hair earlier. 2. physical disease: hair color and the number of melanocytes in the hair follicle, function and so on, some children suffer from vitiligo, albinism, mottled disease and other diseases, the child’s hair will become white. 3. malnutrition: the lack of protein in the body of the baby, some trace elements and other factors will lead to the hair layer pigment synthesis is limited, thus appearing white hair! If the above symptoms occur, it is recommended to go to the hospital in a timely manner, to identify the cause and then give targeted treatment.