Recurrent urinary tract infections (UTIs) constitute approximately 4% of all UTIs, and exhibit an ecological as well as economical risk.1 Epidemiologically, this might be one of the most common problems in urological clinics.2 Often, these infections are secondary to general or local abnormalities. However, a clinically significant fact relates to the gender based epidemiology, seeing that recurrent UTIs involve mainly women even though they generally have a normal urinary tract.3 UTIs are hence one of the most common bacterial infections in women, often as a recurrent disease;4 by definition, recurrent uncomplicated UTI may be defined as 3 or more uncomplicated UTIs in 12 months. A typical phenotype could thus be young, otherwise healthy women with no anatomic or functional abnormalities of the urinary tract, presenting with dysuria or irritative voiding symptoms, caused by re-infection with the original bacterial isolate.5 While survey data suggest that 1 in 3 women will have had a diagnosed and treated UTI by age 24 and more than half will be affected in their lifetime; relating to recurrent UTIs, a 6-month study of college-aged women noted that approximately 27% of these UTIs recurred once within the six months following initial infection.