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There are now many studies showing that PSA screenings are unnecessary and unreliable. Six studies involving 387,000 men who were randomly assigned to either regular screenings or no screenings at all to test the efficacy of PSA screenings were recently reviewed. The researchers found that while PSA tests detected about 20 cancers for every 1,000 men screened, those detections had zero impact on survival rates. Further, those 20 in 1,000 men diagnosed with cancer end up facing incontinence and impotence when they're treated for a disease that never would have hurt them so men typically die with rather than from prostate cancer. (5)
References:
5. Djulbegovic M, Beyth RJ, Neuberger MM, Stoffs TL, Vieweg J, Djulbegovic B,
Dahm P. Screening for prostate cancer: systematic review and metaanalysis of randomised controlled trial. British Medical Journal. 2010;341:c454.
