02/20/2026
You have itching around your a**s at night and can’t sleep. You might have pinworms—the most common parasite in America. Here’s how to test yourself at home tonight.Pinworms affect 40 million Americans, mostly going undiagnosed. They lay eggs around your a**s at night causing intense itching. The scotch tape test catches them when stool tests miss them.Here’s how to do the pinworm tape test:Step 1 – Do this first thing in the morning before showering or using the bathroom. Pinworms lay eggs at night. You need to catch them before they’re washed away.Step 2 – Press clear scotch tape firmly against the skin around your a**s. The eggs are microscopic and sticky. The tape picks them up from the skin folds.Step 3 – Stick the tape to a glass slide or piece of paper. You can examine it yourself with a magnifying glass or take it to your doctor. Pinworm eggs look like tiny white ovals.Step 4 – Repeat for 3 consecutive mornings. One negative test doesn’t rule out pinworms. They don’t lay eggs every night, so you need multiple samples.Step 5 – Look for these symptoms alongside itching: Restless sleep, grinding teeth at night, unexplained anxiety, digestive issues, and a**l itching that’s worse at night.When you identify and treat pinworms with proper antiparasitic medication, symptoms disappear within 2-3 weeks. The itching stops, sleep improves, and digestive issues often resolve.Do the tape test for 3 mornings. If positive, treat the entire household—pinworms spread easily. Use prescription medication like mebendazole or natural alternatives like black walnut and wormwood.Do you have nighttime a**l itching? Try this test and drop your results in the comments. Link in my bio to learn more about gut health and parasites.