in the 20 some years I have been 24/7 I have had only two UTI
when you wipe start from front to back, as i understand it the UTI is some times started from bacteria from your bum as fecal material has all the nastiest stuff that can cause the UTI, keeping your butt clean lessens the chance as well, most non diaper wearing males get UTI from anal sex and then not cleaning up after, keeping hydrated helps but staying clean is important, I usually use most of what my diaper can take and rarely have any UTI, my first one was defiantly from a vacation type setting where I did not get enough fluids as was unable to shower at the end of the day, urine in it's self is fairly sterile but degrades after wetting and I am not fecal IC so I never use diapers for that but try to keep that area as clean as possible and rarely have problems, maby it's the time you spend in a wet diaper that may be a factor, I wear Depends so they don't last as long as the higher quality diapers, how long do you spend in a damp or wet diaper?