The 2 tests for prostate cancer you should know about
There are 2 tests available to help detect prostate cancer early. If you and your doctor decide that the tests are right for you, have both of them (not just one or the other).
Prostate-specific antigen (PSA) test
A PSA test is a blood test that measures prostate-specific antigen, a substance made by the prostate. The normal level of PSA changes as you get older. Higher levels of PSA can be caused by several prostate problems, not just cancer. Sometimes men with prostate cancer have PSA levels that are not higher than normal.
The PSA test cannot diagnose cancer. It just indicates that there might be a problem with the prostate.
The cost of PSA testing may or may not be covered by your provincial or territorial health system or your insurance.
Digital rectal exam (DRE)
A DRE is a physical examination of the prostate through the rectum. The doctor inserts a gloved finger into the rectum to feel the prostate for lumps or anything else that seems unusual.
Both tests are better than one
Using these tests together is better than using either test alone. PSA testing together with a DRE may help find a dangerous cancer early when it is easier to treat.
If a problem is found, more tests will be done to find out whether you have prostate cancer or another health problem. Further tests can include:
- a follow-up PSA test
- a transrectal ultrasound (TRUS) – a test that uses sound waves to make a picture of the rectum and nearby organs, including the prostate
- a biopsy of the prostate – tissue samples of the prostate are looked at under a microscope