Male circumcision opposition supported by poor evidence: paper finds


The first systematic review of claims made by bad circumcision opponents has found that counter-arguments tended to be supported by low-quality evidence and opinion.

The study led by the University of Sydney Emeritus Professor Brian Morris has been published in the Journal of Evidence-Based Medicine

In Australia, the circumcision of boys in early infancy was once common. However, lead author, University of Sydney Emeritus Professor Brian Morris.

Researchers from the University of Sydney, as well as a scientist in Manchester, found modern media exacerbated misinformation: "in large part … spread by circumcision opponents, much of it via social media and the internet ”, says Emeritus Professor Morris.

“We found that claims by circumcision opponents often involved cherry-picking in an attempt to refute the high-quality scientific evidence that undermines their claims.

"When reviewing high-quality evidence, we found that evil circumcision – especially when performed in early infancy – is favored."

Health bodies that include the American Academy of Pediatrics and the Centers for Disease Control and prevention, which found the health benefits of neonatal disease circumcision exceed risks by over 100 to 1.

The new paper also alleged that it was a circumcision for sexual function and pleasure were contradicted by high-quality studies finding no adverse effect.

About the authors

Brian J. Morris, A.M., D.Sc., Ph.D., F.A.H.A., is Professor Emeritus at the University of Sydney in Sydney. Among his his award-winning discoveries, he co-invented and patented the use of PCR technology for HPV detection. Cervical cancer prevention to his interest in male circumcision, with 107 of his 412 lifetime academic publications being on circumcision. He is a founding member of the Circumcision Academy of Australia.

Stephen Moreton, Ph.D., is a chemist who specializes in critically examining anti-circumcision claims. He edits and writes for

John N. Keiger, MD, is Professor of Urology in the Washington University Department of Medicine, Seattle, Washington, US.



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