This epidemiological Study is held in Sağlik Sosyal Yardim Bakanliği--Hacettepe Universitesi Tip Fakültesi Cubuk Research and Training area to find out the prevalence of urinary tract infections and to determine the antibiotic susceptibility of the causitive organisms. The prevalence of urinary tract infections in the area is 10%. E. coli is the most frequently isolated bacterium (40%). Amikacin, Cephotaxime, and Ofloxacine are the most effective antibiotics.