Understanding the PSA Test

The PSA test is a blood test that measures the amount of prostate specific antigen (PSA). PSA is a protein produced by normal cells in the prostate and by prostate cancer cells. It is normal for men to have a small amount of PSA in their blood, and the amount rises slightly as they get older and the prostate gets bigger. A raised PSA level may suggest a problem with the prostate, but not necessarily cancer.

Advantages of a PSA test

Disadvantages of a PSA test

Being diagnosed with a slow-growing prostate cancer that is unlikely to cause any problems or shorten your life may still make you worry, and may lead you to have treatment that you do not need. However, most men with low-risk, localised prostate cancer now have their cancer carefully monitored instead, and only have treatment if the cancer starts to grow. 

For more information about the PSA test, click here.