ObjectiveTo report the management of urinary tract obstruction and infection in a pregnant woman with unrepaired bladder exstrophy.Case ReportA 27-year-old pregnant woman with unrepaired bladder exstrophy was referred to our hospital with a complaint of bilateral flank pain in the second trimester. After two-dimensional abdominal ultrasound, magnetic resonance imaging and a urine analysis, she was diagnosed with an upper urinary tract infection due to ureteral obstruction secondary to unrepaired congenital bladder exstrophy and an intrauterine pregnancy. J-tube insertion was performed after locating the ureteral orifices and antibiotics were administered. Symptoms rapidly resolved. She delivered a normal male infant by caesarean section at 34 weeks of gestation.ConclusionStandard urological management of the ureteral obstruction in pregnancy was successful in this extreme case of unrepaired bladder exstrophy associated with an intrauterine pregnancy. The perinatal outcome was good.