Researchers studied circumcised and non-circumcised men and found that those first have less veneric infections as the seconds.
While most research has found that circumcision reduces the rates of HIV (the virus that causes AIDS), syphilis and genital ulcers, the results are more mixed for other STDs. (Source)Picture of the results of this operation on the bottom of this page -for those who doesn't know what is it about.
They say, it could be good to make it in Africa where the % of AIDS is too high. And the circumcision could reduce the % of ill persons till a half.
I'm not too sure, but I think there are many Muslms and Jews in Africa but it did not help till today. Maybe it works only in New Zealand?
