Children with yellow hair may lack iron, zinc, copper and so on. 1. Iron: children’s growth and development is faster, if the child’s diet is not good, picky eaters, easy to cause the body’s intake of iron is insufficient, may cause iron-deficiency anemia, which can be manifested as pale, yellow hair phenomenon, and may be malnourished, backward growth and development phenomenon. 2. Zinc: lack of zinc may affect cell metabolism and tissue repair, resulting in yellow hair. 3. Copper: lack of copper can also be manifested as yellow hair, due to the decline in tyrosinase function, will affect the melanin metabolism disorder, resulting in yellow hair. Children with yellow hair may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.