Pinworms(Oxiuros) Symptoms, Signs and tests, Causes, incidence and risk factors, Definition, prognosis, Prevention, Complications and medical assistan



* Images
* Alternative Names
* Definition
* Causes, incidence and risk factors
* Symptoms
* Signs and tests
* Salutation
* Expectations (prognosis)
* Complications
* Situations that require medical assistance
* Prevention

Alternative Names

Enterobiasis; Oxyuriasis; Oxiurosis; oxiuros infection, Enterobius vermacularis E. Vermacularis; helminthosis


They are small worms that infect the intestines.

Causes, incidence and risk factors Back to top

The oxiuros are the most common worm infection in the United States and occurs mainly in school-age children.

The eggs of oxiuros spread directly from person to person spread or by contact with bedding, food or other items contaminated with eggs.

Generally, children are infected by touching the eggs and inadvertently oxiuros then put their fingers in their mouths. The eggs are ingested and eventually hatch in the small intestine. The oxiuros mature in the colon.

The females of these worms were then transferred to the child's anal area, especially at night, and lay more eggs. This can cause intense itching and even the anal area can become infected. When the child scratches the anal area which presents pruritus, the eggs can stay under the nails. The eggs can be transferred to other children, family members and household items.


* Difficulty sleeping because of the itching that occurs during the night
* Itching around the anus
* Irritability due to itching and interrupted sleep
* Irritation and infection of the skin around the anus due to constant scratching
* Vaginal irritation or discomfort in young girls (if they oxiuro an adult enters the vagina rather than the anus)
* Loss of appetite and weight (uncommon but can occur in severe infections)

Signs and tests

The oxiuros can be seen in the anal area, especially at night when they lay their eggs in that area.

The doctor may ask to conduct a review with an adhesive tape, which is pressed a piece of cellophane tape against the skin around the anus and then withdrew. This should be done in the morning before showering or using the toilet, because bathing or cleaning can remove the eggs. The doctor sticks the tape to a slide and slide seeking eggs using a microscope.


The main treatment is a single dose of either mebendazole or albendazole (anti drugs), available with or without prescription.

Because it is likely that more than one family member is infected, it is often recommended to treat the whole family. The single-dose treatment is often repeated after two weeks in order to remove the eggs that hatched since the time of initial treatment.

To control the eggs:

* Clean the toilet daily
* Keep nails short and clean
* Wash all bedding 2 times a week
* Wash hands before meals and after using the toilet

Avoid scratching the infected area around the anus, as this can contaminate your fingers and everything else that hands touch later.

Keep hands and fingers away from mouth and nose, unless they are freshly washed. Implement these measures while family members are under treatment for oxiuros.

Expectations (prognosis)

Oxiuros infection can be treated completely.


* Pelvic inflammatory disease
* Repetitive infection with the parasite
Vaginitis *

Situations requiring medical assistance

Request an appointment with your doctor if:

* You or your child have symptoms of infection oxiuros
* You have seen his son in the oxiuros


Wash your hands after using the toilet and before preparing food. Also, frequently wash bedding and underwear, especially those of any family member affected.