Homepage

Introduction

What is cancer

The colon and rectum

What are the causes?

What are the symptoms?

How it is diagnosed
Further tests
Types of treatment used
Surgery
After your operation
If you need a colostomy
Will your diet need to change
Chemotherapy
Radiotherapy
Follow up
Research - clinical trials
Your feelings
If you are a friend or relative
Talking to children
What you can do
Who can help?
Useful organisations
Helpful books

As a charity, we rely
on voluntary contributions
to provide this information.
If you would like to
make a donation to
assist us in our work,
click here

 

Understanding cancer of the colon and rectum

From the CancerBACUP booklet series

Obtain free publications

The colon and rectum (large bowel)

The bowel is divided into two parts, the small and large bowel. Most cancers develop in the large bowel, which is also known as the colon and rectum.

Colon and Rectum

Once food has been swallowed it passes down the gullet (oesophagus) to the stomach and into the small bowel. As food passes through the small bowel it is digested and essential nutrients are taken into the body. The digested food then enters the large bowel and water is absorbed. The remaining waste matter, known as stools or faeces, is held in the rectum (back passage) until it is ready to be passed from the body as a bowel motion.