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The detection of prostate cancer in the United States changed dramatically with the discovery of a screening technique based on a blood test for PSA. PSA stands for prostate specific antigen.
This is a simple and inexpensive test that measures the amount of prostate specific antigen in your bloodstream. PSA is a protein made only by the prostate. Generally when a test shows higher than normal PSA levels, there's a greater chance of having prostate cancer.
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