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 ...

News that former President Joseph Biden has advanced prostate cancer has revived long-standing questions about the benefits versus the harms of a blood test that screens for the most commonly ...

This article was reviewed by Darragh O’Carroll, MD. Prostate-specific antigen (PSA) is a term you’ll probably become familiar with once you start getting screened regularly for prostate cancer ...

Forbes contributors publish independent expert analyses and insights. Joshua Cohen is a Boston-based writer who covers health policy. This voice experience is generated by AI. Learn more. This voice ...

PSA levels can be elevated for reasons other than cancer, such as an enlarged or inflamed prostate. False positive and false negative PSA test results are possible. The American Cancer Society does ...