The cloacal dysgenesis or persistent cloaca is an anomaly included in urogenital tract malformations (UGM) and, in particular, in anomalies due to a missed development of the urogenital septum. The UGM occur during 6-11th weeks of gestation owing to a stop and/or alteration of the normal development and subdivision process of the cloaca, the embryonic structure from which gives origin to the ano-rectal segment of midgut, bladder, ureters, vagina and uterus. The case of a patient submitted to many surgical treatments for urogenital tract congenital malformations is described; when pregnant, she carried other pregnancy until the 34th week of gestation, giving birth a newborn by cesarean section. The patient was checked constantly for her general conditions and, in particular, her renal functions by an active collaboration between internist, nephrologist and gynecologist.