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 ...

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, ...

Researchers at the Johns Hopkins Kimmel Cancer Center, Johns Hopkins All Children's Hospital and four other institutions have devised a novel method to test for prostate cancer using biomarkers ...

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 ...