If asymptomatic bacteriuria is left untreated, what percentage of women are likely to develop symptomatic cystitis or pyelonephritis?

The likelihood of women with untreated asymptomatic bacteriuria developing symptomatic cystitis or pyelonephritis is significantly high. Research indicates that approximately 40% of these women may progress to symptomatic urinary tract infections, specifically cystitis or pyelonephritis. Asymptomatic bacteriuria refers to the presence of bacteria in the urine without any accompanying symptoms, but this condition can predispose women to more serious urinary tract infections if not addressed.

Understanding this statistic emphasizes the importance of screening and treating asymptomatic bacteriuria during pregnancy, as untreated cases can lead to more severe complications for both the mother and the fetus. This is a crucial point in perinatal care management, aligning with the guidelines promoting effective practices for maternal health.