Did you know that simple amputation of the foot can reduce common health problems such as plantars warts, athletes foot and ingrown toenails by up to 100%?

Here's a much more balanced discussion : http://www.bbc.co.uk/news/magazine-19072761 It seems that it's cultural rather than necessary.

You know what else reduces the the risk of heterosexual HIV, HPV, herpes and other infectious genital ulcers?!?! Not being a male whore, wearing a condom, proper hygiene and not sleeping with multiple and/or dirty women. Seriously, I am ashamed to be a member of the health care community right now. You don't cut things off newborn females and you shouldn't cut anything off newborn males. We are made that way for a reason.