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, ...

Prostate cancer is one of the most common cancers that occur in men. While it can be life-threatening, the disease is treatable, and the earlier it is detected, the better the treatment outcome.

WASHINGTON (AP) - A rising PSA level isn't such a good predictor of prostate cancer after all and can lead to many unnecessary biopsies, says a large new study. Most men over 50 get PSA blood tests, ...