Prostate specific antigen (PSA) is a protein measured in the blood that is produced by the prostate gland. It is used as a marker for the early detection of prostate cancer. Currently, the American Cancer Society recommends all men begin screening their PSA at age 50, with annual tests thereafter. Since the implementation of this screening protocol, the number of men who unnecessarily undergo invasive diagnostic and treatment procedures, including radical prostatectomy (complete removal of the … [Read more...] about Risks of Screening Prostate Specific Antigen
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