what is enterobius vermicularis
ENTEROBIUS VERMICULARIS. A pinworm (threadworm) is a small, thin, white roundworm (nematode) called Enterobius vermicularis that sometimes lives in the colon and rectum of humans.Pinworms are about the length of a staple.hat is a pinworm? A pinworm (threadworm) is a small, thin, white roundworm (nematode) called Enterobius vermicularis that sometimes lives in the colon and rectum of humans.