Pinworms may cause gynecological diseases such as vulvitis and vaginitis if the human body is infected. Pinworms are a kind of worm dwelling intestinal nematode, can be parasitized in human intestines to cause infections, the main symptoms are itching around the anus, perineum and so on. Pinworms female eggs in the perianal area, eggs in the perianal area hatch into larvae, larvae from the anus retrograde into the intestinal tract, or invasion of the reproductive tract, women can cause vulvar itching, irritation of the vulva caused vulvitis, into the vagina can cause increased vaginal secretions, pain in the lower abdomen, resulting in vaginitis, and even invade the uterus, fallopian tubes and so on, resulting in the inflammation of the corresponding parts. Therefore the existence of pinworm infection, should be actively treated under the guidance of the doctor, so as not to aggravate the condition.