A few years ago, a retired urology nurse told us that one of the reasons that women are more likely to get UTI's than men is the way we pee.
Men, of course stand up to do so, and thereby gravity helps to ensure that they completely empty their bladders.
Women, not only sit down, but in many cases we then bend over forward whilst doing so. This means that we do not fully empty our bladders and that is the reason that infections build up and take over.
So, once you have dealt with any current infection, try sitting up - straight back whilst on the loo, and even use a small step - the kind of thing we give our g.children when they are first going from potties to toilets - put your feet on them and keep back bolt upright.