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About testicular cancer

The testicles are two oval-shaped organs that hang below the penis. They are sometimes called the testes. They are the main part of the male reproductive system and produce sperm.

Cancer that starts in the testicles is called testicular cancer. There are different types of testicular cancer. The most common types develop from germ cells in the testicles, so they are also called germ cell tumours (GCTs).

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