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About Cancer

Worried about cancer

Find information about how cancer starts, the signs and symptoms and waiting times for cancer treatment. 

For information about the symptoms and treatments for a particular type of cancer, go to our A-Z list of cancer types. You can then choose the cancer type you want to find out more about. 

Choose your cancer type

Signs and symptoms of cancer

Find out about key symptoms to be aware of. Get checked out by your doctor if you notice anything abnormal for you.

What is cancer?

Cancer happens when cells divide in an uncontrolled way. Find out about different types and how they start and grow.

Coronavirus (COVID-19)

COVID-19 is an infectious illness caused by a type of coronavirus. Some people with cancer are at a higher risk of complications because they have a weakened immune system.

Cancer waiting times

There are waiting time targets for the diagnosis and treatment of cancer in the different UK nations.

Your urgent suspected cancer referral

Your GP has arranged for you to see a hospital doctor (specialist) urgently to investigate your symptoms further.

Last reviewed: 28 Nov 2022

Next review due: 28 Nov 2025

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Dangoor Education

About Cancer generously supported by Dangoor Education since 2010. Learn more about Dangoor Education

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Help and Support

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Questions for your doctor

What to ask your doctor about clinical trials.

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Cancer chat forum

Meet and chat to other cancer people affected by cancer.

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Nurse helpline

Questions about cancer? Call freephone 0808 800 40 40 from 9 to 5 - Monday to Friday. Alternatively, you can email us.