How do you catch pinworms?

Pinworm eggs: Pin worms spread because the carrier spreads eggs thru bed sheets, furniture, eggs in hands and nails and serving food.

You consume eggs: Pinworm eggs can contaminate bed linen or sandbox soil & be randomly introduced into a persons mouth on contaminated fingers. As long as the egg casings reach your mouth, they will eventually travel into your intestines where they will hatch & start the cycle over again.The mature adult female crawls into the anal cleft to lay eggs which are dispersed over time to the environment.