Coping physically with cancer
This information is about bowel problems that people with any type of cancer they might have. These problems may be caused by the cancer or by treatments.
The bowel is the part of the digestive system that goes from the stomach to the back passage (anus). Find out more about the bowel and how it works.
Doctors or nurses may ask you to describe your bowel habits and what your poo (stool) looks like. The pictures on this page can help you do this.
The two most common problems are diarrhoea and constipation. But people with cancer might also have problems with bowel blockages, passing wind or having a colostomy or ileostomy.
There are lots of organisations and support groups to help you cope with bowel problems caused by cancer and its treatment.
Last reviewed: 05 Sept 2025
Next review due: 05 Sept 2028
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