You usually start by seeing your GP if you have symptoms. They examine you and might refer you for tests or to a testicular cancer specialist (urologist).
You might have one or more of these tests to diagnose testicular cancer and to find out whether it has spread (the stage). And you might have further tests throughout and after treatment to see how it is working.
Blood tests can check for proteins called tumour markers. These help diagnose testicular cancer and monitor how well treatment works.
Ultrasound scans use high frequency sound waves to create a picture of a part of the body.
MRI stands for magnetic resonance imaging. It uses magnetism and radio waves to create cross sectional pictures of the body.
The surgeon usually removes your testicle to diagnose the cancer. The operation is called an orchidectomy.
A CT scan is a test that uses x-rays and a computer to create detailed pictures of the inside of your body.