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Treatment for bowel (colon) cancer

Surgery for colon cancer

Most people have surgery for colon cancer that hasn't spread. The operation you have depends on the position of the cancer in the bowel.

This section is about surgery for cancer that starts in the large bowel (colon cancer) that hasn't spread to another part of the body. 

Find out about surgery for rectal cancer

Types of surgery for colon cancer

The type of surgery you have for cancer of the large bowel (colon) depends on the position and the size of the cancer in the bowel.

Before your operation for colon cancer

Before your operation, you have tests to check your fitness and you meet members of your treatment team.

On the day of your colon cancer surgery

On the day of your operation, you need to do things including stopping eating for a few hours.

Surgery to remove a small part of the bowel lining (local resection)

Local resection is for small, early stage colon cancers. Your surgeon removes the cancer from the bowel lining, along with a border of healthy tissue (margin).

Surgery to remove all of or a part of your bowel (colectomy)

Your surgeon might remove part of the colon containing the tumour. This is called a colectomy.

Having a colostomy for colon cancer

A colostomy is an operation to create an opening (stoma) of the large bowel (colon) onto the surface of the tummy (abdomen).

Last reviewed: 22 Jan 2025

Next review due: 22 Jan 2028

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