Pinworms are small worms that infect the intestines.
Enterobiasis; Oxyuriasis; Threadworm; Seatworm; Enterobius
vermicularis; E vermicularis; Helminthic infection Causes,
incidence, and risk factors Pinworms are the most common worm
infection in the United States. They are most common in school-
age children. Pinworm eggs are spread directly from person to
person. They can also be spread by touching bedding, food, or
other items contaminated with the eggs. Typically, children are
infected by unknowingly touching pinworm eggs and putting their
fingers in their mouths. The eggs are swallowed, and eventually
hatch in the small intestine. The worms mature in the colon.
Female worms then move to the child's anal area, especially at
night, and deposit more eggs. This may cause intense itching.
The area may even become infected. When the child scratches the
itching anal area, the eggs can get under the child's
fingernails. These eggs can be transferred to other children,
family members, and items in the house. - Diff