The prostate health index (PHI) is a blood test that more accurately assesses the risk of prostate cancer than a traditional PSA test. The PHI combines three different PSA tests to create one risk ...

The prostate health index (PHI) is a blood test that more accurately assesses the risk of prostate cancer than a traditional PSA test. The PHI combines three different PSA tests to create one risk ...

Credit: Getty Images In men with a total PSA of 2 ng/mL or more, a low percent-free PSA value is associated with a greater likelihood of clinically significant prostate cancer. Adding percent-free PSA ...