For your consideration ...
Actually, Louise, circumcision has been around since about 2300 BC with historical records and archaeological evidence dating the practice back to the ancient Egyptians. And was religious in nature, not to prevent STD's. Both Jewish and Islamic law sanction and indeed promote religious circumcision for males. And if what you say is somehow true, which it is not, then how is it that those men in outer countries, such as Europe, and other uncircumcised men, have no issues concerning STDs? The practice of circumcision is rare in Europe, Latin America, and most of Asia and we don't hear of epidemic outbreaks of STDs there now do we?