To prevent urinary infections if you often experience them, there are several non-pharmacological measures you can take. It is recommended to urinate after sexual intercourse, always wipe from front to back after using the toilet, stay hydrated throughout the day, avoid spermicides during intercourse, and go to the bathroom to urinate as soon as you feel the need. If you experience three or more episodes of urinary infections per year, it is important to inform your doctor. Having had a previous infection increases the risk of future infections.