Obstetric Fistula
An abnormal communication between the genital tract and the urinary tract (vesicovaginal fistula, the most common) or rectum (rectovaginal fistula), most commonly resulting from prolonged, obstructed labor without timely access to cesarean section (see Obstructed Labour entry), where sustained pressure of the fetal head against the maternal pelvis causes ischemic necrosis of the intervening soft tissue, with the fistula becoming clinically apparent several days after delivery as the necrotic tissue sloughs.
Remains a significant cause of morbidity in regions with limited access to emergency obstetric care, and carries profound social and psychological consequences given the resulting continuous incontinence.

