I just LOLed @ Dopey, too much sex? too much masturbation? what type do you have?
I could see getting it from masturbation/sex if you didn't wash your hands, banging out a dirty girl or having an STD to began with. I know a bit about UTI's seeing how i am allergic to a certain type of condom, so i know my share about them.
Sex is good for your body, and masturbation too.. Bacteria is what causes infections, Dopey...Not sex.