Anal fissure

Symptoms of an anal fissure

The main symptoms of an anal fissure are:

There are other causes of pain around your anus and bleeding from the bottom (rectal bleeding), such as piles (haemorrhoids).

How you can treat or prevent an anal fissure yourself

If you think you might have an anal fissure, there are some things you can try to see if they help.

Do

  • take paracetamol or ibuprofen to help with pain

  • drink lots of fluids and eat plenty of fibre to keep your poo soft

  • have a warm, shallow bath after you poo to ease pain in your bottom

  • keep your bottom clean and dry

Don’t

  • do not ignore the urge to poo

Non-urgent advice: See a GP if:

  • you or your child have symptoms of an anal fissure and they're getting worse, or there's no improvement after 7 days of treating it yourself

What happens at your GP appointment

To check if you have an anal fissure, your GP will ask about your symptoms and look at your anus.

You may be referred to a specialist for an examination under general anaesthetic if:

Treatments for an anal fissure

An anal fissure usually heals on its own.

If an anal fissure is not healing or your symptoms are getting worse, you may need treatment.

The main treatments for anal fissures are:

If these treatments do not work or you keep getting anal fissures, a procedure may be recommended, such as:

These will be done under general anaesthetic, so you'll be asleep and will not feel anything.

Causes of anal fissures

It's not always clear what causes an anal fissure. They're more common in people aged 15 to 40, and in young children.

You may be more likely to get an anal fissure if you:

Page last reviewed: 26 June 2025
Next review due: 26 June 2028