Urinary tract infections due to sexual intercourse can be highly prevented by using condoms regardless of the penetration intent is. When these bacteria enters the urinary canal and given sufficient time to thrive inside the human body, they cause tract to engorge resulting to pain. The reason for this really is why these adjustments to diet also change or get a new woman's vaginal environment and PH. If that environment is alkaline, it's more friendly towards the Y or boy producing sperm. If it's acidic, it is quite tough on those self same Y sperm but friendly for the X's (or those that produce girl babies.) This can be a predisposing factor to pathological conditions like the urinary tract infection