The worms live in the lower intestine, but they come out of the anus over night to lay their eggs in the area between the buttocks, which causes your child's bottom to feel very itchy. It is estimated that one female threadworm can lay up to 16,000 eggs.
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. Pinworm infection is the most common type of intestinal worm infection in the United States and one of the most common worldwide.
Threadworms live about 5-6 weeks in the gut, and then die. However, before they die the female worms lay tiny eggs around the anus. This tends to be at night when you are warm and still in bed. The eggs are too small to see, but cause an itch around the anus.
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.
Threadworms look like tiny pieces of white cotton. Roundworms look more like earthworms. Hookworms can cause a red worm-shaped rash. Tapeworms are long, pale yellow and flat.
In some species, the segments break off with the eggs to pass through the intestines of the host in their poop. The segments look like little grains of white rice. Segments in poop are often the first visible sign of a tapeworm infection.
Pinworm eggs can also be transferred to the fingers from clothing or bedding, and then spread around the home. Eggs may be inhaled from the air or deposited onto food and swallowed. Pinworms can survive up to two weeks on clothing, bedding or other objects, if kept at room temperature.
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.
Threadworms are very common and easily spread, so it's hard to completely avoid them. Having threadworms doesn't mean you have poor hygiene.
Causes of threadworms
Scratching the anus or vagina, or wiping them after going to the toilet, can cause the eggs to stick to your fingertips or under your fingernails. If you don't wash your hands, the eggs can be transferred to your mouth or on to food or objects, such as toys and kitchen utensils.
Yes, it is normal to see dead threadworms in the persons bowel motions. Depending on the frequency of bathroom visits this can take up to one week. Symptoms of threadworm infection usually disappear within one week of treatment.
Itching around the anus caused by a pinworm infection usually happens at night. Try wearing gloves, pyjamas, and close-fitting clothing to help prevent scratching. Bathe carefully every day. Be sure to clean the skin around the anus.
The worms die after about six weeks. Provided that you do not swallow any new eggs, no new worms will grow to replace them. So, if you continue the hygiene measures described above for six weeks, this should break the cycle of re-infection, and clear your gut of threadworms.
Chlorine dioxide gas inactivates pinworm eggs in a non-invasive and non-corrosive manner.
Wash bedsheets, pajamas, underwear, washcloths and towels in hot water to help kill pinworm eggs. Dry on high heat.
Pinworm can be treated with either prescription or over-the-counter medications. A health care provider should be consulted before treating a suspected case of pinworm infection. Treatment involves two doses of medication with the second dose being given 2 weeks after the first dose.
The most common and effective prescription and over-the-counter (OTC) medications for pinworm infections include: mebendazole (Vermox) albendazole (Albenza)
Yes. A pinworm infection can also be spread through: Bed sheets and undergarments: Eggs can spread through contact with contaminated sheets, towels or underwear of infected people.
A person is infected with pinworms by ingesting pinworm eggs either directly or indirectly. These eggs are deposited around the anus by the worm and can be carried to common surfaces such as hands, toys, bedding, clothing, and toilet seats.
They can be found in house dust, on toilet seats, bed linens and toys and in play areas in or outside the home. Although pinworms only grow in humans, the eggs can be carried in a pet's fur.
The best way to diagnose this infection is to do a tape test. The best time to do this is in the morning before bathing, because pinworms lay their eggs at night. Steps for the test are: Firmly press the sticky side of a 1-inch (2.5 centimeters) strip of cellophane tape over the anal area for a few seconds.
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.