In an article in BMJ (2012), the author discusses PSA screening for prostate cancer. Several studies have shown that a small number of prostate deaths could be avoided by screening for prostate cancer. However, a significant number of men may be harmed by treatment that they may never have needed. The authors believe that by using a genetic test looking for the presence of common prostate cancer genes, followed by a personalised use of PSA screening depending on genetic risk starting at the age of 45, would reduce the cost of screening and improve the pickup of significant prostate cancer compared to insignificant disease, thus reducing over treatment.
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