Pinworms can be hard to see. Your doctor may give you a special test for pinworms. After your child has a BM, you can put scotch tape over your child's anus. When you lift the tape up, you may see pinworms on the tape. 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.
Give your child pinworm medicine. Your doctor will prescribe medicine for your child. See if other family members have pinworms. Your whole family may need medicine. Check with your doctor.