Itching in the anus, especially at night, along with seeing small white worms (likely pinworms, Enterobius vermicularis) on toilet paper, is a classic presentation of enterobiasis.
Why it happens
Pinworms live in the intestine but crawl out at night to lay eggs around the anal skin.
This causes intense itching.
Eggs can stick to skin, clothes, bedding, and under fingernails—leading to re-infection or spread to others.
Next Steps
1) Treatment (for you and all household members at the same time to prevent reinfection):
Albendazole 400 mg once, repeat after 2 weeks
2) Mild petroleum jelly or zinc oxide cream around anus can reduce irritation.
Health Tips
Hygiene measures (to avoid reinfection):
1) Wash hands with soap after using toilet and before eating.
2) Keep fingernails short and avoid scratching.
3) Bathe every morning to remove eggs from skin.
4) Wash underwear, bedding, and nightclothes in hot water daily during treatment period.
Avoid shaking sheets or clothes (eggs can become airborne).