Thrombosed Pile: What to Do About Sudden Anal Pain

A thrombosed pile is an external haemorrhoid where a small clot has formed inside it. It can appear suddenly as a tense, tender lump at the anal opening and can be very painful for a few days.

What causes it?

Straining, constipation, heavy lifting, prolonged sitting and pregnancy can all increase pressure around the anus. Sometimes there is no obvious trigger.

What helps at home?

• Keep stools soft with fluids, fibre and a stool softener if needed.
• Use simple pain relief if you can take it safely.
• Warm baths may ease spasm and discomfort.
• Avoid prolonged straining on the toilet.

When is treatment useful?

If the pain is severe and the lump is very recent, a small procedure to remove the clot can sometimes give faster relief. If symptoms are already settling, conservative treatment is often best.

When to seek urgent advice

Get checked promptly if the pain is worsening, you have fever, spreading redness, heavy bleeding, difficulty passing urine, or you are unsure whether the lump is a pile.

This article provides general information and is not a substitute for individual medical advice. Please consult a qualified clinician about your own circumstances.