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About Cancer

Testicular cancer

Testicular cancer is when abnormal cells in a testicle start to divide and grow in an uncontrolled way. The testicles are part of the male reproductive system.

We have information on symptoms, getting diagnosed, treatments, and living with testicular cancer.

What is testicular cancer?

Testicular cancer is cancer that develops in the testicles. The testicles are part of the male reproductive system.

Symptoms of testicular cancer

Symptoms of testicular cancer include a lump or swelling in part of one testicle or a heavy scrotum. Find out about other possible symptoms and when you should see your GP.

Getting diagnosed with testicular cancer

You usually start by seeing your GP. They might refer you for tests or to a specialist if you have symptoms that could be caused by testicular cancer.

Survival for testicular cancer

Survival depends on many factors including the stage and type of your cancer. Survival for testicular cancer is high.

Types of testicular cancer

Your type of testicular cancer depends on which type of cell it started in. Knowing your type helps the doctor decide which treatment you need.

Stages of testicular cancer

The stage describes the size of your cancer and whether it has spread. Doctors also look at the level of tumour markers in your blood.

Last reviewed: 18 Feb 2025

Next review due: 18 Feb 2028

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