PSA (Prostate-Specific Antigen)

Prostate-Specific Antigen (PSA) is a protein produced by the prostate gland, which is part of the male reproductive system. PSA is naturally present in small amounts in the blood, but elevated levels can indicate issues such as prostate enlargement, inflammation, or prostate cancer. Doctors often use a PSA blood test as a screening tool to help detect potential prostate problems early. However, higher PSA levels do not always mean cancer, so further tests are usually needed for a definitive diagnosis. PSA testing helps monitor prostate health but should be interpreted alongside other clinical information.