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 ...

Many men with low levels could be spared from invasive procedures and frequent testing ...

Dr. Barry W. Goy explains how to interpret PSA levels after prostate cancer treatment and how to manage recurrence based on disease progression. Among patients with intermediate-risk prostate cancer, ...