Pinworms

Enterobiasis; Oxyuriasis; Threadworm; Seatworm; Enterobius vermicularis; E vermicularis; Helminthic infection

Pinworms are small worms that infect the intestines.

Pinworm eggs

Pinworms are a common problem in children and may spread to adults (typically the parents or other care-givers). The eggs may be easily seen under a microscope. To obtain a sample, a piece of cellophane tape is pressed against the patient's anal opening. The sticky side of the tape picks up the pinworm eggs and the tape is then stuck to a microscope slide. The eggs can be viewed under the microscope, as seen above. (Image courtesy of the Centers for Disease Control and Prevention.)

Pinworm, close-up of the head

This is the head of a pinworm. Pinworms are most common in children. They are easily transmitted and sometimes appear in small outbreaks among school children.

Pinworms

Pinworms are a contagious intestinal parasite infestation that occurs commonly in children.

Causes

Symptoms

Exams and Tests

Treatment

Outlook (Prognosis)

When to Contact a Medical Professional

Prevention