Abdominal Aortic Aneurysm (AAA) Screening

AAA screening is a test that checks if there is swelling in your aorta, the main blood vessel that carries blood from your heart to your abdomen. This screening is done to find any swelling in your aorta, which could be dangerous if it bursts. Finding it early means it can be treated before it causes serious problems.

Who should have AAA screening?

All men in England who are 65 years old will be invited for AAA screening.

AAA screening is recommended for anyone assigned male at birth, including men, trans women, and non-binary people.

You will only have this test once unless an aneurysm is found.

AAA screening is not usually offered to:

  • Men under 65
  • Women
  • People who have already had treatment for an AAA
  • If you think you are at higher risk (for example, because of family history, high blood pressure, smoking, or other health conditions), talk to your GP about whether you should get screened.


How to get AAA screening

If you're 65, you'll receive a letter with a pre-booked appointment for AAA screening. The letter is sent about 3 to 6 weeks before your appointment. The test usually takes place at GP surgeries, health centres, or hospitals.

You can choose whether or not to have the test. If you decide not to, you can call the AAA screening service to cancel or change your decision later.

Further information

What happens during the test?

AAA screening is done using an ultrasound scan. It is quick, taking about 10 to 15 minutes, and doesn't hurt. A small device called a probe is placed on your abdomen to take images of your aorta. If the image isn't clear, you might need another scan

Getting your results

You will get your results immediately after the test. Your GP will also be sent the results.

If no aneurysm is found: No further action is needed, and you won’t need another scan.

If an aneurysm is found: The treatment depends on the size of the aneurysm.
What the results mean

Small (3cm to 4.4cm) : You’ll have a scan every year to check if it grows, and you'll see a nurse for advice.

Medium (4.5cm to 5.4cm): You’ll have a scan every 3 months and see a nurse for advice.

Large (5.5cm or bigger): You’ll be referred to a specialist for further tests and treatment.


What happens if an aneurysm is found?
If the aneurysm is small or medium, a nurse will give you advice on managing it. This may include:

  • Taking medicines
  • Getting your blood pressure checked more often
  • Healthy lifestyle changes like quitting smoking, losing weight, and eating a balanced diet.

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