Itching around the anus is common and can be very bothersome, especially at night. It is rarely serious, and it often gets better once the cause is found and a few habits are changed.
Common causes
- Moisture and small leaks of stool or mucus, for example from piles, soft stools or difficulty wiping clean
- Too much cleaning: scrubbing, soap, scented wet wipes and antiseptics irritate the skin and make the itch worse
- Skin conditions, such as eczema, psoriasis or a reaction to creams
- Infection, such as fungal infection (more likely with diabetes or after antibiotics) or threadworms (more common in children and their families)
- Foods and drinks that loosen the stool or irritate in some people, such as coffee, tea, cola, chilli, citrus and beer
- Less commonly, an anal fissure or fistula
Care that helps
- After a bowel movement, rinse with plain water (a bidet spray or shower is ideal) and pat dry gently. Do not rub.
- Avoid soap, scented wipes and antiseptic on the area
- Wear loose cotton underwear and keep the area dry
- Try not to scratch. Keep nails short, and wear cotton gloves at night if you scratch in your sleep.
- Keep stools formed with fibre, so they pass cleanly
- A mild steroid cream from your doctor can calm a flare, but only for a week or two. Long-term use thins the skin.
When to see a doctor
See a doctor if the itch lasts more than a few weeks despite these measures, if there is bleeding, a lump or a sore, or if the skin looks broken or changed. An examination of the back passage usually shows the cause.
General information only. Reviewed by Dr Chia Chung King, 2026-11-13. Book a consultation.