There are a variety of ways to detect prostate cancer. Since the rectum is so close to the prostate gland, the doctor can feel for abnormalities by inserting a gloved finger into the rectum. While the DRE is useful in finding prostate cancer, many early cancers are missed by this method. This blood test has revolutionized the detection of prostate cancer. If the results are eleveated, further testing can reveal if the condition is cancer or benign.
Prostate cancer is the only cancer which has a sensitive blood test to detect the cancer.
The American Cancer Society recommends that both a DRE and PSA blood test be performed annually, starting at the age of 50, for men who have at least a 10 year life expectancy. Men who are at higher risk can begin screenings at an earlier age. There has been controversy over the usefulness of early detection of prostate cancer. Some in the medical community feel early detection of prostate cancer in most patients is not associated with any long-term survival benefit. These views, however, are based upon statistics that are 20 years old and no longer valid.