what causes pinworms
In girls, pinworm infection can cause vaginal itching and irritation (vaginitis). In severe cases, weight loss, restlessness, irritability, and loss of appetite may occur. In a few rare cases, attacks of appendicitis may have been caused by pinworms blocking the appendix.
(Worms, Parasites, Enterobius Vermicularis) The pinworm, or Enterobius vermicularis, is a small parasitic worm that can live inside the human lower intestine. Only 3 mm to 10 mm long, it causes an intense itching in the area of an infected person's anus, especially at night.