The PSA test measures levels of prostate-specific antigen in the blood to screen for prostate cancer. High PSA levels could indicate prostate cancer but can also be caused by other prostate conditions. There is conflicting advice about PSA testing and whether a man should get tested depends on discussing risks and benefits with their doctor. In addition to a PSA test, doctors may perform a digital rectal exam to check the prostate for abnormalities. The US Preventive Services Task Force currently recommends against PSA screening because many men are harmed by overtreatment while few benefit, as better tests and treatments are still needed.