You may help prevent bacteriuria by drinking several glasses of water each day. This may discourage the growth of bacteria by flushing out your urinary tract, although this has not been proven. Drinking cranberry juice every day might also slow the growth of bacteria. But this also has not been definitively shown through medical studies.
To prevent the spread of intestinal bacteria from the rectum to the urinary tract, women should always wipe toilet tissue from front to back after having a bowel movement.