- Anal cancer is a rare type of cancer that affects the anus.
- The anus is where your bowel connects to the outside of your body (the bottom).
- Anal cancer can start in any part of the anus.
- How serious anal cancer is depends on where it starts, how big it is, if it spreads and your general health.
Important: Get your symptoms checked
It's important to get any symptoms of anal cancer checked as soon as possible. Finding it early can make it more treatable.
Page last reviewed: 8 March 2021
Next review due: 8 March 2024