How Long Is Pinworm Contagious?

When and for how long is a person able to spread the disease? A person will remain infectious for as long as there are worms laying eggs on the skin around his or her rectum. Pinworm eggs can remain infectious in an indoor environment for two to three weeks.

How long are you contagious with pinworms after treatment?

If you're using an OTC medication, your symptoms will likely subside within three days of your first dose. The infection is still considered contagious for the following three weeks.

How contagious is pinworms?

Pinworms are contagious and easily spread, usually from child to child. Pinworm eggs can be picked up on children's fingers when they're playing. When children who are infected scratch their itchy bottoms, the tiny eggs can get under their fingernails. Eggs can stay on your child's skin for several hours.