Prostate Specific Antigen (PSA) measures PSA levels. Elevated levels may indicate prostate issues.
PSA is a protein that is released primarily in semen and the remainder being released into the blood. Elevated levels may indicate prostate cancer or benign prostatic hyperplasia (BPH) or prostate inflammation. PSA is often measured during routine male checkups and is a screening tool for prostate cancer. It is also regularly apart of follow-up blood work for men who undergo hormone replacement therapy (HRT) especially testosterone replacement therapy (TRT).