Pinworms are rarely spotted in stool samples. Because bathing or a bowel movement can remove the eggs, the tape test should be done as soon as the person wakes up in the morning.
Pinworms are small white worms about 1/2 inch long and as thin as a thread. They can sometimes be seen in and around the child's bottom (anus) and in bowel movements.
Sometimes worms are visible in the anal area, on underwear, or in the toilet. In stool, they look like small pieces of white cotton thread.
If you have pinworms, you might see the worms in the toilet after you go to the bathroom. They look like tiny pieces of white thread. You also might see them on your underwear when you wake up in the morning. But the pinworm eggs are too tiny to be seen without a microscope.
How is pinworm infection diagnosed? Itching during the night in a child's perianal area strongly suggests pinworm infection. Diagnosis is made by identifying the worm or its eggs. Worms can sometimes be seen on the skin near the anus or on underclothing, pajamas, or sheets about 2 to 3 hours after falling asleep.
At night, the adult worms can sometimes be seen directly around the anal area or in pajamas. The worm (one-quarter to one-half inch long) is clearly visible to the naked eye.
One way to detect pinworms is to shine a flashlight on the anal area. The worms are tiny, white, and threadlike. If none are seen, check for 2 or 3 additional nights. The best way to diagnose this infection is to do a tape test.
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.
The most common symptom of infection is anal itching, particularly at night, as worms migrate to the host's anal area to lay their eggs.
Symptoms of pinworm
feeling mildly unwell. inflammation of the vagina. adult worms can sometimes be seen in the faeces, and eggs may be seen clinging to the skin around the anus. irritability and behavioural changes.
Pinworm eggs can survive for 2-3 weeks on fingers, under fingernails, and on surfaces such as linens, clothing or toilet seats. The tiny eggs can only be seen under a microscope.
About threadworms
The worms are white and look like small pieces of thread. You may notice them around your child's bottom or in their poo. They don't always cause symptoms, but people often experience itchiness around their bottom or vagina. It can be worse at night and disturb sleep.
Many anti-worm preparations, for example pyrantel (e.g. brand names Anthel, Combantrin and Early Bird) and mebendazole (e.g. Combantrin-1 with Mebendazole, Vermox) can be bought over-the-counter at pharmacies. However, some are only available on prescription, such as albendazole (Zentel).
Chlorine dioxide gas inactivates pinworm eggs in a non-invasive and non-corrosive manner.
Causes of itchy bottom
a bacterial infection – such as those that cause streptococcal infections. a skin condition – such as atopic eczema, where the skin becomes red, dry and flaky. haemorrhoids (piles) – swellings that contain enlarged and swollen blood vessels in and around the anus.
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.
It is especially active at night or early morning. Rarely, the pinworm is seen on the surface of a stool. The pinworm's secretions are a strong skin irritant and cause the itching.
Dipylidium caninum mimicking recurrent enterobius vermicularis (pinworm) infection.
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.
find a large worm or large piece of worm in your poo. have a red, itchy worm-shaped rash on your skin. have sickness, diarrhoea or a stomach ache for longer than 2 weeks. are losing weight for no reason.
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.
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.
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)
In girls and women, pinworms may invade the vulva and vagina, causing a discharge and itching like that more often associated with a yeast infection.