Prostate-specific antigen (PSA) is a protein produced by both normal and cancerous cells in the prostate gland. It is primarily measured through a blood test, where normal levels are typically found ...

PSA stands for prostate-specific antigen, a substance naturally produced in prostate tissue. A small amount of PSA regularly sneaks into the bloodstream, and low blood concentration is considered ...

Dear Dr. Roach: I am a 68-year old male in good health who exercises regularly, doesn’t take any medications, and doesn’t have a family history of prostate cancer. During my most recent yearly ...

This article was reviewed by Darragh O’Carroll, MD. PSA and Testosterone: Are They Linked? Prostate-specific antigen (PSA) is a term you’ll probably become familiar with once you start getting ...