Children with gray hair, which can be called less white hair, is considered to be related to genetic factors, malnutrition, and disease factors. 1. Hereditary factors: if both parents have childhood gray hair, then the two children’s chances of childhood gray hair will be higher than other children’s chances, mainly by and genetic influence. 2. Malnutrition: children appear white hair, but also and often picky eating partial food related, in the case of malnutrition, will cause the hair follicle cells in the pigment particles, such as melanin secretion decrease, then will form white hair. 3. Disease factors: such as children with pituitary disease, may affect the melanocyte hormone, because the melanocyte hormone mainly acts on the pigment granules of the hair follicle cells, so as to make their secretion of melanin, because of the impact of the disease, resulting in the emergence of gray hair symptoms. Children with gray hair, there may be other reasons, need to cooperate with the doctor to improve the relevant examination, to determine the cause, and then do targeted treatment and treatment.