Doubt Cast On Value Of PSA Test: Study Indicates Prostate Cancer Indicator Results In More Harm Than Good

Most men diagnosed with prostate cancer in the past two decades never needed to know they had the disease, leading many to treatment that can do more harm than good, according to a new study. The findings, published in Monday's Journal of the National Cancer Institute, found that since a blood test became the standard way to screen for prostate cancer, an additional 1.3 million men have been diagnosed with the disease. But because many men are diagnosed with cancer that will not cause symptoms and will not kill them, the screening tests save few lives, the authors conclude. The findings have reignited a long-simmering debate in medical circles on the merits of the blood test, known as prostate-specific antigen screening, or PS...