The Free PSA (Prostate-Specific Antigen) Test is a blood test that mea...
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Free PSA in the blood is generally considered a positive sign. It indicates that a portion of the prostate-specific antigen is unbound and not attached to other substances. Higher levels of free PSA in relation to total PSA may suggest a lower risk of prostate cancer. However, free PSA levels should be interpreted with other clinical factors and diagnostic tests to assess the individual's situation.
If free PSA is present in the blood, is it good or bad?
Total PSA and free PSA serve different purposes in prostate cancer screening. While total PSA provides an overall measurement of prostate-specific antigen in the blood, free PSA specifically measures the unbound fraction. The ratio of free PSA to total PSA can aid in distinguishing between benign conditions and prostate cancer. However, the choice of which marker is better depends entirely on individual factors and should be evaluated by a doctor.
Which is better, total PSA or free PSA?