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Testicular cancer is a rare type of cancer that accounts for about one percent of all cancers in men. An estimated 2,000 men are diagnosed with testicular cancer each year in the UK.

Testicular cancer is more unusual than other cancers because it has a bad effect on young men. Testicular cancer is the most common type of cancer affecting men between the ages of 15 and 49.

For unclear reasons, white men have a higher risk of developing testicular cancer than regular men.

The number of testicular cancer cases diagnosed each year in the UK has doubled since the mid-1970s.

Causes of testicular cancer

The exact cause or cause of testicular cancer is unknown, but a number of factors have been identified that may increase a man's risk of developing the disease. Three key risk factors are described below.

• Testicles do not go down as usual.
• Family history of the disease