Pinworms are tiny parasites that live in the intestines of humans. They are most active at night, and the itching they cause is usually most severe at night.
The itching is caused by the female pinworm laying eggs around the anus. These eggs can cause irritation and itching, especially at night when people are sleeping.
While pinworms can cause itching during the day, it is usually less severe than at night. This is because the female pinworms are less active during the day and lay fewer eggs.
If you are experiencing itching during the day, it is important to see a doctor to rule out other causes of itching, such as eczema or scabies.
