Prostate cancer is the most common cancer among men in the United States, with an estimated 1 in 8 men being diagnosed with the disease during their lifetime. Early detection and treatment of prostate cancer are crucial for improving the chances of successful outcomes. One of the ways to check for prostate cancer is through a prostate-specific antigen (PSA) blood test.
A PSA test measures the level of PSA in the blood. PSA is a protein that is produced by the prostate gland. Elevated levels of PSA can be an indication of prostate cancer, although it is important to note that not all cases of elevated PSA are due to cancer. Further evaluation, such as a digital rectal exam or a prostate biopsy, may be necessary to confirm a diagnosis of prostate cancer.