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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

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Understanding cancer of the colon and rectum

From the CancerBACUP booklet series

Obtain free publications

What causes cancer of the large bowel?

In most people the cause of cancer of the large bowel is still unknown. However, people who have a rare condition known as familial adenomatous polyposis, in which benign tumours called polyps are found in the lining of the colon, have an increased risk of developing the disease. This also applies to people with a long history of ulcerative colitis, a disease of the lining of the bowel.

There is evidence to suggest that cancer of the large bowel may also be linked to our diet. It is thought that a diet which is high in animal fat and protein, and low in fibre, may increase the risk of developing cancer of the bowel.

People with a strong family history of bowel cancer may also have an increased risk of developing the disease. There are specialist clinics for people worried about the risk of bowel cancer in their family. Contact your GP or CancerBACUP's Cancer Information Service for more details.