The white worms in the child’s buttocks are called pinworms, also known as white threadworms, a parasite, this pinworm is shaped like a line, about 1 cm. pinworms like to parasitize the baby’s intestines, especially like to be active at night, due to the anal sphincter of the child at night when he sleeps is flaccid, at this time, pinworms from the anus to crawl out, and in the body outside the egg laying, and then adult worms crawling back to the anus, it is called pinworms disease. Treatment of pinworm disease is very simple, take the worming medicine on the line, commonly used deworming drugs have two kinds, including albendazole, mebendazole, as long as the requirements of the treatment can be taken. Usually pay special attention to care, the baby’s clothes should be ironed with boiling water, sleep in the fall coat, fall pants, and at the same time to avoid the baby’s clothes and adult clothes in the wash together. As long as the usual attention to care, pay attention to hygiene, coupled with the treatment of deworming medicine, pinworm disease can be cured.