Browser does not support script.
Skip to main content
We are Macmillan. Cancer Support
Find out how we produce our information|
Radiotherapy treats cancer by using high-energy rays to destroy the cancer cells, while doing as little harm as possible to normal cells.
Radiotherapy is rarely used to treat colon cancer except occasionally to relieve symptoms.
Our radiotherapy| section discusses the treatment and its side effects in more detail.
Content last reviewed: 1 July 2012
Next planned review: 2014
For answers, support or just a chat, call the Macmillan Support Line free (Monday to Friday, 9am-8pm)
If you are diagnosed with cancer, Macmillan is supporting a new online tool to help you make decisions about your treatment and care. See My Cancer Treatment| for more information.
If you have any questions about cancer, need support or just want someone to talk to, ask Macmillan.
If you have any questions about Macmillan we would love to hear from you| .
You can also follow us| on Facebook, Twitter, Flickr or YouTube.
© Macmillan Cancer Support 2013
what are these?|