It’s considered good sense to have a regular prostate
screening these days, especially with awareness campaigns like Mo-vember
bringing attention to the issue.
But many men aren’t aware there are also health risks
involved with screening, as A/ProfDragan Ilic of the Monash
Department of Epidemiology and Preventive Medicine told the
Conversation.
The most common form of prostate screening, the PSA test,
often fails to correctly diagnose cancer, but will incorrectly diagnose a
healthy person.
“The PSA test may
fail to diagnose more than one in five cases where prostate cancer is present,”
Prof Ilic said.
“The review also
found the specificity of PSA tests ranged from 6% to 66%, which means the PSA
test may incorrectly “diagnose” prostate cancer in the majority of patients who
test positive to the PSA test, when in fact, they do not have the disease.”
The problem with
over diagnosis is that it can lead to healthy people undergoing a biopsy of the
prostate gland, and the commencement of cancer treatment. Side effects of these
procedures include erectile dysfunction and incontinence, along with
significant emotional distress.
“The 2013 Cochrane systematic review on screening for prostate cancer, which
pooled analyses of five randomised controlled trials, concluded that screening
did not significantly decrease prostate cancer-related deaths but that harms
such as over-diagnosis were common,” he said.
A/Prof Ilic stressed that men should weigh the risks before
requesting a prostate examination from their GP.
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