A couple on a couch looking at a laptop together
Canadian Cancer Society

Cancer information

Understanding cancer can help ease the anxiety of a diagnosis. Find information on more than 100 cancer types, discover how you can reduce your risk, find cancer early and check out our publications, videos and webinars.
Two sets of hands clasped together

What is cancer?

When you or a loved one is diagnosed with cancer, it’s normal to have a lot of questions. Learn about types of cancer, how cancer grows and can affect different organ systems, grading and staging and the role of genes.
Two sets of hands clasped together

Cancer types

Learn about the risks, signs and symptoms, diagnosis, outlook and treatments for a wide range of cancers.

A photo of a woman sitting on the floor

Find cancer early

When cancer is found early, it’s often easier to treat. Screening tests can help find cancers before you’ve even noticed symptoms, but it’s important to get changes in your body checked out as well. Learn when you should see a doctor and when you should be screened for specific cancers.
Two elderly women laugh with each other at the beach

Reduce cancer risk

Making changes to reduce your cancer risk doesn’t mean that you will never get cancer – but it does mean that your chance of getting the disease is lower. There’s a lot you can do to help protect your health. Learn simple ways to make healthy choices and informed decisions to reduce your risk of cancer.
A man on a laptop doing online research

Artificial Intelligence (AI) in oncology - information kit

Learn more about AI and how this technology can impact the entire cancer experience – from screening and diagnosis to treatment and life after cancer. It also explores some of the ways that AI can change and contribute to cancer care, as well as some of the challenges and limits of using this technology. 
A man on a laptop doing online research