In a study of more than 1,800 men from the U.S. and Peru, researchers found that overall, the risk of contracting HIV over 18 months did not significantly differ between circumcised and uncircumcised men.
The results "indicate no overall protective benefit from male circumcision" when it comes to male-to-male HIV transmission, write the researchers.
Currently, the American Academy of Pediatrics does not recommend routine circumcision for newborns, citing insufficient evidence of overall health benefits.