Testicular cancer

Testicular cancer

What is testicular cancer?

Cancer that develops in a testicle is called testicular cancer or cancer of the testis.

Most testicular cancers start in the cells that develop into sperm, which are called germ cells. Usually only one testicle is affected, but in some cases, both testicles are affected.

Read more about testicular cancer.



Testicular cancer symptoms

In some men, testicular cancer does not cause any symptoms. Other men may notice one or more of the following symptoms:

  • swelling or a lump in the testicle (usually painless)
  • a feeling of heaviness in the scrotum
  • change in the size or shape of the testicle (e.g. hardness or swelling)
  • a feeling of unevenness. 

Read more about the symptoms of testicular cancer.



Testicular cancer statistics

  • Testicular cancer is a rare cancer. About 690 men are diagnosed with the disease each year. This accounts for about 1% of all cancers in Australian men.
  • Testicular cancer occurs most often in men aged 20-40 years.
  • The average age at diagnosis is 35. 



The aim of this information is to help you understand about testicularcancer. We cannot advise you about the best treatment for you. You need to discuss this with your doctors. However, we hope this information will answer some of your questions and help you think about the questions you would like to ask your doctors or other health carers.