Understanding the Prostate-Specific Antigen (PSA) Test

Welcome to this Decision Guide about PSA testing. Prostate-specific antigen, or PSA, is a blood test used by many doctors to screen for prostate cancer. If you've had your PSA level checked, you may have been told that your results were "normal" or "abnormal." However, some men would like to know more about what their PSA level means. This tool provides more information about PSA levels, and what's considered to be reassuring or worrisome for men of different ages.
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