Children’s itchy buttocks may be not clean or pinworms and other causes. 1. local did not clean up: if the child did not clean up the buttocks area after defecation, excrement stored in the buttocks area, it is easy to produce local irritation, which leads to itching symptoms. 2. pinworms: small children itchy buttocks may also be infected with pinworms, usually pinworms will come out of the intestine at night, spawning near the anus, will produce stimulation around the anus, thus leading to itchy buttocks. Children’s itchy buttocks are recommended to actively go to the regular hospital for examination, to clarify the specific causes, follow the doctor’s instructions to deal with, usually must do a good job of local cleanliness and hygiene, after the stool thoroughly clean buttocks area, to avoid excrement residue, children wear underwear to be diligent in changing and washing.