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Cancer of unknown primary

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Risk reduction strategies for cancer of unknown primary

Risk reduction is taking action to lower one’s risk of developing cancer. Cancer of unknown primary (CUP) represents a number of different types of cancer, so there isn’t a specific, known way to reduce the risk. However, certain changes in lifestyle can reduce the risk of many types of cancer, and so might reduce the risk of CUP.

Be a non-smoker and avoid second-hand smoke

Smoking, especially heavy, long-term smoking, increases the risk of developing many different types of cancer. If you smoke, get help to quit. Avoid second-hand smoke.

Be physically active and maintain a healthy body weight

Research shows that being overweight or obese increases your risk of developing several different types of cancer. Being physically active and maintaining a healthy body weight lowers the risk of cancer.

More information about reducing cancer risk

Learn about what you can do to reduce cancer risk.


Nikki Ross Volunteering during Daffodil Month is a fun way to show your support.

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Establishing a national caregivers strategy

Illustration of caregivers

The Canadian Cancer Society is actively lobbying the federal government to establish a national caregivers strategy to ensure there is more financial support for this important group of people.

Learn more