Itchy bones in the hands and bones of children may be caused by skin allergies, calcium deficiency, cold irritation and other factors. 1. Skin allergy: If children come into contact with allergens such as flowers or animal hair, it can lead to allergic reactions in the body, thus causing the symptoms of itchy hands and bones. 2. Calcium deficiency: Bone growth occurs rapidly during childhood, and calcium provides nutrients for bone growth and development. When there is not enough calcium in the body, it will affect the growth of bones and make children’s hands and bones itchy symptoms. 3. Cold stimulation: when the hand is in a cold environment for a long time, so that the local bone tissue and soft tissue frostbite, and then return to the normal environment, will lead to hand bone and skin itching symptoms. Children’s hand bone itching, there may be 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.