Asymptomatic bacteriuria (AB) is a Urinary Tract Infection (UTI) without clinical symptoms. It is recurrent in pregnant women and can cause severe maternofetal consequences. In fact, 87 (eighty seven) women were followed up for urinary infections examination for AB at the health center in Lome, Togo, in antenatal care session. The study aims to identify the possible germs responsible of AB among pregnant women in the center and its frequency. They did not have a presumption of UTI at the time of urine collection. The urine culture enabled us to conduct analyzes. This study has shown a frequency of 31.03 %. The age group (28-33) has been the most exposed with a percentage of 48.14%. The bacteria were isolated at all ages of pregnancy but the highest proportions were observed in pregnant women from 7 and 8th month of pregnancy with proportions respectively of 22.22% and 29.65%. By the first births and multiple births pregnant women were the most affected by the BA (29.65% and 33.33%). The frequency of positivity among retailers and seamstresses is estimated at 37.03% and 25.95% respectively. The main isolated germs were: Staphylococcus aureus (48, 14 %), Streptococcus agalactiae (14. 85 %), Enterococcus fecalis (11.11 %), Escherichia coli (7. 40 %), Klebsiella pneumoniae (7.40 %). The diagnosis of asymptomatic bacteriuria during pregnancy is important; it helps highlight the caused organisms to adapt better prenatal care.
Key words: Asymptomatic bacteriuria, Urinary tract infection, Pregnant women