Do I Have Testicular Cancer?

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Do I Have Testicular Cancer?

Men who develop lumps, swelling, or pain in their groin or scrotum may be worried they have testicular cancer. Here we describe the symptoms of testicular cancer and some other problems that may cause symptoms in this part of the body. We also include information on how to do a testicular self-exam for men who want to do so.

This is not meant to be a complete guide to testicular symptoms, nor is it meant to give medical advice or replace the expertise and judgment of a doctor. If you notice any changes in your testicles, you should see a doctor so that the cause can be found and treated, if needed.

The testicles

The testicles are a part of the male reproductive system. They are also called the testes; one testicle is called a testis. In adult males, these 2 organs are each normally somewhat smaller than a golf ball. They are contained within a sac of skin called the scrotum, which hangs beneath the base of the penis.

The testicles have 2 main functions:

  • They make male hormones (androgens) such as testosterone.
  • They make sperm, the male cells needed to fertilize a female’s egg to start a pregnancy.

Sperm cells form inside the testicle and are then stored in the epididymis, a small coiled tube behind each testicle, where they mature.

Last Medical Review: 11/05/2013
Last Revised: 11/05/2013