From my perspective in health care every year lots of men have to have theirs removed, evidently because they just didnt care enough to take care and things got messy and infected etc. This procedure would have to be worse as an adult. I have not read this but I have heard that circumcised have essentially zero risk of cancer and that "cancer will only develop in uncircumcised men" (albeit the risk is small even for the uncircumcised)
Weeelll...it brings on a "peak of awareness"...and a really loud scream.
Two of my (formerly uncirc-ed) uncles had to have the procedure done in their 50s do "an emergent medical condition," which I assumed to be some sort of pre-cancerous indication.
In neither case was hygiene an issue --
Regards,
PS: Both my boys are snipped. Neither of them even yelped when it was done by my nice (and FAST) OB/GYN. My uncles were relieved to hear it.
That being said...my advice to anyone is always "do what you think best for YOUR kids."