The procedure is associated with reduced rates of sexually transmitted infections[6] and urinary tract infections.[1][7][8] This includes reducing the incidence of cancer-causing forms of human papillomavirus (HPV) and significantly reducing HIV transmission among heterosexual men in high-risk populations;[9]
Not really.
Circumcision randomly starts in many places. None of them related to hygiene.
https://en.m.wikipedia.org/wiki/Forced_circumcision
https://en.m.wikipedia.org/wiki/Circumcision
Why would we be born with something you’re supposed to cut off?
Atavism. We were evolved for different conditions. Likely different climate and definitely not wearing clothes.
But I do not claim that it is better to do that. Only that there were medical reasons to do so (even if possibly overall not beneficial).
(when administered as part of a single
missionstudy in Zimbabwe funded by Bill Gates)