What are the dangers of anal sex between two people that are 101% sure they are clean? Obviously there is the chance of a UTI if a condom is not used but anything else? What if a condom isn't used? What are the chances of a UTI? How you fix a UTI anyway? How will I know if I got one? I assume it will hurt to piss or something. My BF and I use a condom pretty much every time but I'd like to try it without one to be honest. Just want to see what I'd be getting myself into.