Pinworm infection (called enterobiasis or oxyuriasis) causes itching around the anus which can lead to difficulty sleeping and restlessness. Symptoms are caused by the female pinworm laying her eggs.
Complications. Typical pinworm infections don't cause serious problems. In rare circumstances, heavy infestations can cause infection of female genitals. The parasite can travel from the anal area up the vagina to the uterus, fallopian tubes and around the pelvic organs.
If left untreated, the intense itching and scratching associated with these infections will result in secondary bacterial infections. Some of these may be difficult to treat. Untreated people can continue to infect other people.
Although often asymptomatic, parasitic infections can lead to disruptions in mood, behavior and sleep – particularly in children with worms. The most common worm infection amongst Australian children is threadwork (pinworm, Enterobius vermicularis).
How long does pinworms last? The life cycle of a pinworm is 4 to 6 weeks. Without treatment, infestation will continue as long as fresh eggs are being swallowed, unless a person develops immunity to pinworms, which is unusual before age 15.
To treat pinworm infection, your doctor may recommend over-the-counter pyrantel pamoate or prescribe medication to all members of your household to prevent infection and reinfection. The most common prescription anti-parasite medications for pinworms are: Mebendazole. Albendazole (Albenza)
If your child develops a pinworm infection, try not to worry. Pinworms don't cause any harm (just itching and restless sleep), and it won't take long to get rid of them.
Most pinworm infections are mild and easily treated. Your doctor may prescribe a single chewable tablet of a medicine called mebendazole. A second tablet is taken about 3 weeks later if the infection isn't cured. Or your doctor may recommend another kind of medicine called pyrantel, which is taken as a single dose.
Chlorine dioxide gas inactivates pinworm eggs in a non-invasive and non-corrosive manner.
Ectopic pinworm infections have been described in many organs including the vagina, inguinal area, genitals, peritoneum, liver, oral cavity, lungs, and pelvis. There are even reported cases of appendicitis caused by impaction of the organ by pinworms. While death is very rare, recurrences are common.
The medications used for the treatment of pinworm are either mebendazole, pyrantel pamoate, or albendazole. Any of these drugs are given in one dose initially, and then another single dose of the same drug two weeks later.
The key is to break the 6-week cycle of pinworm reinfection by killing any live pinworms and preventing the ingestion of eggs. A diagnosis should be confirmed before treating with medications. Medications kill only the adult worms and have no effect on developing eggs and larvae.
Causes of Pinworm Infection
You get pinworms by accidentally swallowing or breathing in their eggs. You could eat or drink something that's contaminated with them and not know it. The eggs can also live on surfaces like clothing, bedding, or other objects.
The research isn't clear but worm infections (not just pinworm) seem to impact on how our immune system develops and functions. There have been suggested links to the hygiene hypothesis, microbiome diversity, inflammatory bowel disease, obesity and diabetes. Some studies even showing a benefit!
Strict hygiene measures can clear up pinworm infection without medication, and reduce the risk of reinfection. The worm has a lifespan of about six weeks, therefore the strict hygiene needs to last that long.
After taking the pinworm medicine, itching should stop in 5 to 7 days.
Your child may be fussy and wake often at night. If your child is infected, it may take 2 to 8 weeks for symptoms to start.
Wash bedsheets, pajamas, underwear, washcloths and towels in hot water to help kill pinworm eggs. Dry on high heat.
Because it is common for everyone in a household to have pinworms at the same time, the doctor may recommend that everyone be treated at the same time. The doctor may also recommend tap water enemas to help flush out the pinworms and reduce symptoms.
So many of us or our family members have experienced this relatively mild though distressing infection. Pinworm is the most common worm infection in North America with up to 50% of some groups of school aged children getting infected.
Pinworm eggs continue to be present (excreted) in the feces of an infected person for up to a week after the treatment, so precautions should be taken to prevent reinfection by washing hands thoroughly, especially under the nails. Bathe daily. Change and wash clothing and bedding frequently.
If you are self-treating for pinworms, take the medication once only. Do not repeat the dose without talking with your doctor first. Depending on the type of worm infection you have, your doctor may direct you to take the medication only once or for several days.