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Getting diagnosed with anal cancer

Screening for anal cancer

There is no national screening programme for anal cancer in the UK. This is because there isn’t a test that can pick up anal cancer at an early stage.

What is cancer screening?

Screening means testing people for early stages of a disease. This is before they have any symptoms. For screening to be useful the tests:

  • need to be reliable at picking up cancers

  • overall must do more good than harm to people taking part

  • must be something that people are willing to do

Screening tests are not perfect and have some risks. The screening programme should also be good value for money for the NHS.

Read more about screening

Why isn't there a UK screening programme?

There is no national screening programme because:

  • anal cancer is rare so many people would have unnecessary tests

  • there isn’t a screening test to check for anal cancer

  • the benefits don't outweigh the costs

Most cases of anal cancer are linked to the ​​ (HPV). There isn’t currently a reliable test to check for HPV in the anus.

Read more about HPV

What to do if you think you're at risk

Talk to your GP if you think you might be at higher than average risk of developing anal cancer. For example, if you have a medical condition that increases your risk.

Read more about the risks and causes of anal cancer

Last reviewed: 11 Mar 2025

Next review due: 11 Mar 2028

What is anal cancer?

Anal cancer is when abnormal cells in the anus divide in an uncontrolled way. It can start in different parts of the anus and different types of cell.

Cancer screening

Cancer screening looks for early signs of cancer in people without symptoms.

Symptoms

Anal cancer symptoms may include bleeding, bowel changes and severe itching around the anus (pruritus). It is important to see your doctor if you have any of these symptoms.

Seeing your GP

See your GP if you notice a change that isn't normal for you. Or if you have any possible symptoms of anal cancer.

Risks and causes

The human papilloma virus (HPV) is the biggest risk factor for anal cancer. Other factors include getting older or having a weakened immune system.

Anal cancer main page

Anal cancer is cancer that starts in the anus. The anus is also called the anal canal.

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