There is no universally accepted "normal" PSA level. In the past, a PSA of 4 nanograms per milliliter of blood (ng/ml) or less was considered normal; however, more recent studies have shown that some men with PSAs below 4 have prostate cancer and some men with PSAs over 4 do … Read More
Prostate screening traditionally has focused on two methods: the digital rectal exam (DRE) and prostate specific antigen, or PSA testing. Researchers have always worked toward improving the accuracy and reliability of both modalities. Along the way, PSA test options have been surfacing.
New methods seek to clarify diagnoses in men whose … Read More