ASYMPTOMATIC BACTERIURIAIN NORMAL PREGNANCY.

The prevalence of asymptomatic bacteriuria (ASB) in pregnant women is 2% to 10%and depends on race, parity, and socioeconomic status . Escherichia coli is the most common etiologic agent in asymptomatic infection and quantitative culture is the gold standard for diagnosis.In pregnant women this infection can progress upward, causing acute urethritis, acute cystitis(40%), and acute pyelonephritis (25-30%). Pyelonephritis, in turn, can lead to adverse outcomes such as preterm labor, which is the most common cause of serious complications-including death-in newborn babies. A positive urine culture is the only means of diagnosis. The U.S. preventive service task force and American Congress of Obstetricians and Gynecologists most strongly recommend screening and treating for asymptomatic bacteriuria (ASB) in pregnant women. Weretrospectivelyhave studied frequency and microbial spectrum of asymptomaticbacteriuria in pregnant women without clinical demonstrationswith gestational age of 12-16 weeks who visited TSMU The First University Clinic obstetrics and gynecology department in 2015-2016.Our results showed that the prevalence of asymptomatic bacteriuria in normal pregnant women is 9.3% ,which is approximately the same as the other countries(2-10%). However, more studies are required to determine the specific rate of asymptomatic bacteriuria and factors that are responsible for region differences.Escherichia coliwas the most common isolate accounting for approximately 53,8% of cases. It originates from fecal flora colonizing