PSA blood testing

The prostate-specific antigen (PSA) blood test is one way to screen for prostate cancer. This blood test measures the level of PSA in the blood. PSA is a protein made only by the prostate and a prostate cancer. The test can be done in a lab, hospital or healthcare provider’s office.

Very little PSA is found in the blood of a man with a healthy prostate. A low PSA is a sign of prostate health. A rapid rise in PSA may be a sign that something is wrong. Prostate cancer is the most serious cause of a high PSA result. Another reason for a high PSA can be benign (non-cancer) enlargement of the prostate. Prostatitis, inflammation of the prostate, can also cause high PSA results.

A rise in PSA level does not tell us the type of cancer cells present. The rise tells us that cancer may be present.
Talk with your healthcare provider about whether the PSA test is useful for you. If you decide to get tested, be sure to talk about changes in your PSA score with your provider.

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