Once someone has ingested pinworm eggs, there is an incubation period of 1 to 2 months or longer for the adult gravid female to mature in the small intestine. Once mature, the adult female worm migrates to the colon and lays eggs around the anus at night, when many of their hosts are asleep.
How long after exposure to pinworms do symptoms appear?
Symptoms usually are noticed one to two months after infection. How are pinworms spread? Humans are the only known source of pinworms; pets and other animals do not have pinworms. People become infected when they eat the eggs of the worm.
How fast do pinworms grow?
They then move through the rectum to the lower intestine, where they grow to adult size within two to six weeks. Pinworm infections can be spread as long as either worms or eggs are present.
Do pinworms come out every night?
So many of us or our family members have experienced this relatively mild though distressing infection.
How easy is it to get pinworms?
The tiny (microscopic) eggs are easily spread to family members, caregivers, or other children at school or child care centers. Pinworm infections are uncommon in children younger than age 2. Living in crowded spaces. People who live in institutions are at higher risk of developing pinworm infections.
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