The worm may be seen around the anus or on the child's bottom. 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.
The adult female worm crawls out of the infected person's anus at night and lays her eggs in the surrounding skin. This causes itching and scratching. The worms can also move to the vagina of a female child and cause itching. Eggs can live for 2 to 3 weeks outside the body.
An adult pinworm generally is 1/4 to 1/2 inch (about 6 to 13 millimeters) in length. 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.
The eggs pass into the digestive system, where they hatch. About 1 to 2 months later, adult female pinworms lay eggs on the skin right around the anus, which makes the area itchy. Often, this happens at night.
Because pinworms usually crawl out of the anus while a child sleeps, the tape test is an easy way to find pinworms. It's best to do this right when your child wakes up and before they use the bathroom or take a bath. To do the tape test, pat a piece of clear tape on the skin around the anus.
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. Pinworm eggs can be collected and examined using the “tape test” as soon as the person wakes up.
Pinworms can survive up to two weeks on clothing, bedding or other objects, if kept at room temperature.
In order to stop the spread of pinworm and possible re-infection, people who are infected should shower every morning to help remove a large amount of the eggs on the skin. Showering is a better method than taking a bath, because showering avoids potentially contaminating the bath water with pinworm eggs.
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. Read more about the symptoms of threadworms.
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.
Chlorine dioxide gas inactivates pinworm eggs in a non-invasive and non-corrosive manner.
For the itching, wash the skin around the anus with warm water. For severe itch, use 1% hydrocortisone cream (such as Cortaid) 2 times per day. Use for 1 or 2 days. No prescription is needed.
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.
Your doctor will give you some medicine to take right away and then again 2 weeks later to be sure the worms are gone. The doctor can also give you a cream to help stop the itching. Because it's easy to pass pinworms on to other people, the doctor may want the other people in your house to take medicine, too.
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.
They look like pieces of white thread. You might also see them around your child's bottom (anus). The worms usually come out at night while your child is sleeping.
The female adult worms leave the anus in the middle of the night while the person is sleeping to deposit her eggs around the skin of the perianal region.
A hot water wash, or the heat of an iron, will kill the eggs. Do not shake bed linen indoors as this can spread eggs around. Shower each morning, and wash around anus.
Because pinworms lay their eggs at night, washing the anal area in the morning can help reduce the number of pinworm eggs on your body. Showering may help avoid possible re-contamination in bath water. Change underwear and bedding daily. This helps remove eggs.
Do not scratch. 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.
People get pinworm infections from swallowing these eggs after touching an infected person's skin or personal belongings, such as clothing, bedding, and toys. Pinworms can spread as long as the worm remains alive in the infected person. The eggs can survive up to 3 weeks on clothing and other objects.
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.
Pinworm eggs are infective within a few hours after being deposited on the skin. They can survive up to two (2) weeks on clothing, bedding, or other objects. The pinworms grow to adult size within two (2) to six (6) weeks. Pinworm infections can be spread as long as either worms or eggs are present.
Children with pinworms do not need to miss any child care or school.