Testicular cancer develops when normal cells in the testicle(s) become abnormal and start growing uncontrollably, forming a tumour or mass. The exact reason why a cell becomes cancerous is unclear. Testicular cancer accounts for 1% of all male cancers and according to GLOBOCAN statistics for South Africa, the incidence is 218 cases per year. It is one of the most common cancers in men aged 15 – 44 years and rarely occurs before puberty.1,2,3,4
Most types of testicular cancer develop in the sperm-producing cells known as germ cells, and are referred to as germ cell tumours. Germ cell testicular cancers are divided into two main types:2
1. Seminomas (about half of cases) occur most commonly in men aged 25 – 55 years.
2. Non-seminomas, usually affect men aged 15 – 35 years. These tend to grow and spread more quickly.
Family history: brothers and sons of affected men have an increased risk.
Race: white men are about 5 times more likely to get testicular cancer.
Undescended testicles (testes): increased risk.
Infertility: men with fertility problems have an increased risk.
HIV/AIDS: increased risk.
Typical signs of cancer in its initial stage:
Typical signs of cancer in an advanced stage:
If the cancer is found at a more advanced stage and has spread to other parts of the body then various other symptoms can develop.
The TSE is an easy way for you to check your own testicles for any unusual lumps or bumps which can be the first sign of testicular cancer. It is important to do a TSE every month so that you become familiar with the normal size and shape of your testicles. This will make it easier for you to notice any changes that may occur in the future.
Contact your doctor if you notice any of the following:
These changes do not necessarily mean you have cancer, but they should be checked by your doctor.