Threadworms (also known as pinworms) are tiny worm parasites which infect the large intestine (gut). Threadworms look like small thin white pieces of thread. This type of infection is common, particularly in young children.

Threadworms can live in the gut for around 6 weeks before dying. The female worms may also lay tiny eggs around the anus, which can result in itching around the anus.

Although all of our content is written and reviewed by healthcare professionals, it should not be substituted for or used as medical advice. If you have any questions about your health, please speak to your doctor.

Authored May 18, 2021 by Joseph Issac, MPharm
Reviewed Jun 15, 2021 by Prabjeet Saundh, MPharm
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