The prostate specific antigen (PSA) test measures a protein that can be produced by cancerous tissue in the prostate, which is a gland at the base of the penis. You can find more information at: https://www.cancer.org/cancer/types/prostate-cancer.html

On average, 1 in 8 people with a prostate will get prostate cancer. But some are at higher risk, including people with a prostate who are Black and those with a close relative who had prostate cancer.