Abdominal and pelvic adhesions

Expert reviewer, Mr Christian Macutkiewicz, Consultant General & Hepatobiliary Surgeon
Next review due January 2025

Adhesions are bands of scar tissue that can make the tissues and organs inside your body stick together. They often form after you’ve had an operation inside your tummy (abdomen) or pelvis.

 A woman looking very worried

About adhesions

Your body makes scar tissue when it heals. Scar tissue can happen if the tissues inside your tummy or pelvis get damaged.

Adhesions are bands of scar tissue that form between different organs or tissues. They can make your organs or tissues stick together. You may get adhesions:

  • after any type of surgery in your tummy or pelvis – for example, bowel surgery
  • after an infection in your tummy
  • if you have an ongoing inflammatory condition such as endometriosis

You’re more likely to get adhesions after open surgery than after laparoscopic (keyhole) surgery.

Most adhesions don’t cause any symptoms, so you may not know you have them. But sometimes, they can cause some problems – for more information, see our section on symptoms of adhesions.

Symptoms of adhesions

Adhesions affect everyone differently. Many people don’t have any symptoms at all. Some people have a few symptoms that don’t bother them too much. Others have symptoms that affect their daily life. If you do get symptoms, you may not notice these for a few months or even years after your adhesions form.

You may start noticing symptoms if your adhesions are causing the following problems.

  • A blocked bowel (bowel obstruction) may happen if different parts of your bowel stick together. Your bowel can get partly or completely blocked. This can cause cramping pains in your tummy, bloating, feeling sick and being sick. You may also have constipation – that is when you find it hard to poo. A complete obstruction is a medical emergency. For more information, see our section on complications of adhesions.
  • Ongoing pain in your tummy or pelvis.
  • Problems getting pregnant may happen if your adhesions affect your ovaries or fallopian tubes.

These problems aren’t always caused by adhesions. So, if pain in your tummy or pelvis isn’t getting any better, see your GP. Or, if you’ve recently had an operation, contact the hospital where you had it. If you have sudden tummy pain, you should seek urgent medical advice.

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Diagnosis of adhesions

Adhesions can be hard to diagnose because they don’t cause any specific symptoms. And there are no specific tests to show you have adhesions.

If you have tummy pain, your doctor will ask you about:

  • your symptoms
  • your medical history
  • any medicines you’re taking
  • any surgery you’ve had in the past

They may also:

  • examine you – using their hands to feel around your tummy and pelvis
  • use a stethoscope to listen for sounds in your bowel

They’ll usually do several checks, including taking your temperature, pulse rate and blood pressure. They may also ask you for a urine sample and suggest you have some blood tests.

Imaging tests

You may need to have some imaging tests. Adhesions don’t always show up in tests and scans – but having these may help to rule out other conditions. These tests may include:

Fertility tests

If you haven’t been able to get pregnant after trying for a year or more, your GP may refer you to a doctor who specialises in reproductive health or fertility problems. They may suggest tests to check whether you’re having problems getting pregnant because you’ve got adhesions.

Self-help for adhesions

If your adhesions are causing pain, you can take over-the-counter painkillers such as paracetamol or ibuprofen. Always read the patient information leaflet that comes with your medicine. If you have any questions, ask your pharmacist for advice. If over-the-counter painkillers aren’t helping, make an appointment to see your GP.

Your GP may advise you to make some changes to your diet. This may help food pass through your bowels more easily. It may also ease the pain. You may be advised to:

  • eat softer foods
  • eat foods low in fibre
  • drink more fluids

If you’re finding it hard to poo, your GP may prescribe a laxative for a short while. This will help to soften your poo so it’s easier to pass. Your GP may also prescribe some medicines to ease your tummy pain.

Treatment of adhesions

Adhesions don’t usually cause problems, and most people don’t need any specific treatment. But you may need to go into hospital if:

  • your doctor thinks you have a blocked (obstructed) bowel
  • you have severe pain because of an adhesion

Non-surgical treatment for an obstructed bowel

If you have a blocked bowel, the hospital will keep an eye on you until the blockage clears. They’ll usually suggest you don’t eat or drink anything for a day or two. This will give your bowel a rest, so it hopefully won’t get completely blocked. You’ll be put on a drip to make sure you get enough fluids and salts. They’ll also put a tube into your nose. This will release gas and fluid from your stomach.

You’ll be offered pain relief with a stronger painkiller (such as morphine) while you’re in hospital. Gradually, you’ll be able to start having sips of drinks, followed by soft food and then more solid food.

These measures will usually be enough to clear a partially blocked bowel. But if you’re not getting better after a few days, your doctor may advise you to have surgery.


Surgery for adhesions is called adhesiolysis. This cuts through and separates the adhesions. Your doctor may suggest you have surgery for several reasons.

  • You have signs of a complete bowel blockage. In this case, the surgery may be done as an emergency procedure to clear your bowel.
  • You’ve been having treatment for a partly blocked bowel for a couple of days but aren’t getting better.
  • You’re having ongoing tummy or pelvic pain, thought to be caused by adhesions.

Having any type of surgery may mean you get more adhesions afterwards. So, your surgeon will talk through the risks, benefits and possible alternatives. They’ll only advise you to have an operation if they think it’ll help you.

Your surgeon may be able to do the operation using keyhole surgery. This means putting surgical tools and instruments through small cuts into your tummy to see inside and cut the scar tissue. You’re less likely to get new adhesions after keyhole surgery than after open surgery. But if you have certain complications or a lot of your bowel is blocked, you may need open surgery instead. Open surgery is when a surgeon makes a single large cut into your tummy.

Causes of adhesions

You can get adhesions after any type of surgery in your tummy or pelvis, including:

You may also get adhesions:

Complications of adhesions

Complete bowel obstruction

A partial bowel obstruction may be treated without surgery. But a complete bowel obstruction is a medical emergency because it can be life-threatening.

If your bowel is completely blocked, your bowels will stop working. You may:

  • have a lot of pain
  • not be able to pass wind or poo

Seek urgent medical attention if you have these symptoms.

Strangulated bowel

If part of your bowel gets twisted tightly around a band of adhesions, this can cut off the blood supply. This is called a strangulated bowel. It’s life-threatening if you don’t get treatment – so it’s vital to get help.

Symptoms of bowel strangulation include:

  • severe and constant pain in your tummy
  • bleeding from your bottom
  • a fever (high temperature)

If you have these symptoms, call for an ambulance or go to your nearest accident and emergency department.

Prevention of adhesions

Adhesions may form if you have an operation. This is how your body sometimes reacts to surgery on your tummy and isn’t due to the skill of your surgeon. If you have lots of operations, you’re more likely to have more adhesions.

Scientists are trying to make substances and fluids that can be used during surgery to stop adhesions forming. But these products don’t prevent adhesions completely, so most surgeons don’t use them.

Keyhole surgery usually leads to fewer adhesions than open surgery. So, if you’re having an operation, ask your surgeon if keyhole surgery is an option for you.

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Related information

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    • Perioperative care. Colorectal Surgery. 2nd ed. Oxford Medicine Online., published online August 2021
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    • Fertility problems: assessment and treatment. National Institute for Health and Care Excellence (NICE), Clinical Guideline CG 156, September 2017.
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    • Adhesions. Guts UK., accessed December 2021
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  • Reviewed by Victoria Goldman, Freelance Health Editor, January 2022
    Expert reviewer, Mr Christian Macutkiewicz, Consultant General & Hepatobiliary Surgeon
    Next review due January 2025