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 ...

National guidelines on prostate cancer screening with the PSA test are set by the U.S. Preventive Services Task Force (USPSTF). This independent panel of experts in preventive and primary care ...

A prostate-specific antigen (PSA) test is a blood test that measures a protein released in the blood by prostate cells. Both normal and cancerous prostate cells release the protein. Most of the time, ...

A new at-home saliva test could help identify men with a high risk of prostate cancer more accurately than blood tests, leading to earlier diagnosis and more successful treatment. Prostate cancer is ...