How is prostate cancer diagnosed?

A doctor can use different tests to screen for prostate cancer, such as a digital (finger) rectal exam, a prostate-specific antigen (PSA, a protein secreted by prostate cells) blood test, and imaging tests (e.g., ultrasound, magnetic resonance imaging).^[1] A prostate biopsy is then used to confirm the presence of prostate cancer and determine the severity of the disease.