NEW YORK (Reuters Health) - On average, men's levels of prostate-specific antigen (PSA) decrease as their body mass index (BMI) rises, a new study shows. PSA is a marker for prostate cancer risk when ...

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 ...