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Colorectal cancer

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Treatments for stage 0 colon cancer

The following are treatment options for stage 0 colon cancer. Your healthcare team will suggest treatments based on your needs and work with you to develop a treatment plan.


Surgery is the standard treatment for stage 0 colon cancer. Local excision is usually done to remove the tumour and a small amount of tissue around it. This surgery is often done during a colonoscopy with a polypectomy. Sometimes more surgery is needed to remove any cancer left behind or if cancer cells are found in the tissue removed with the tumour (called positive surgical margins).

A bowel resection may be done if the tumour is too large to be removed with local excision. Depending on the location of the tumour, the surgeon may do a right hemicolectomy, transverse colectomy, left hemicolectomy, sigmoid colectomy, subtotal colectomy or total colectomy.

Clinical trials

You may be asked if you want to join a clinical trial for colon cancer. Find out more about clinical trials.


Dr Claude Perreault Harnessing the immune system to fight cancer

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Help for smokers trying to quit

Illustration of no smoking symbol

It’s okay to need help to quit smoking. The Canadian Cancer Society is here to support people who are ready to quit and even those people who aren’t ready.

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