A pinworm is a white, short, very thin worm. You may see them around your child's anus (where the stools come out). You may also see them in a stool. If your child's bottom itches, your child may have pinworms. Pinworms are not serious. But they need to be treated.
Use a flashlight to check for pinworms.
Pinworms can be hard to see. Your doctor may give you a special tape test for pinworms. After your child has a stool, you can put Scotch tape over your child's anus. When you lift the tape up, you may see pinworms on the tape. Bring the tape to your doctor for testing.
If your child has been near another child with pinworms and has no itching, your child probably does not have pinworms. Pinworms are never around very long before they cause itching.