This is kind of a long one, thanks for reading. So I'm a male, 33, contracted a UTI presumably from an improperly sterilized intermittent catheter (self-inserted). I sometimes have to use a catheter anyway (mainly for shy bladder syndrome, but a few times I also had urinary retention from NSAID drugs or something), and I was running low on catheters, so I washed but didn't properly sanitize some of my catheters for several uses. A few days later, I got a fever, and other UTI symptoms.