Where a boy is born has a big influence on whether he'll be circumcised, data from the Centers for Disease Control and Prevention show. CDC hide caption

itoggle caption CDC

A rabbi holds up a pillow used during ritual circumcision at a synagogue in Berlin. Markus Schreiber/AP hide caption

itoggle caption Markus Schreiber/AP

Social worker Shannon Coyne and her husband decided against circumcision for their son, now 11 months old. The nation's most influential pediatricians group says the health benefits of circumcision in newborn boys outweigh any risks and that insurance companies should pay for it. Matt Rourke/AP hide caption

itoggle caption Matt Rourke/AP