Vesico-uterine fistulas (VUF) are an increasingly rare entity (5% of all urogenital fistulas). The authors report two cases of VUF following cesarean section. The literature is reviewed briefly, indicating that Youssef syndrome is the commonest presentation. This lesion is certainly benign but is a source of discomfort for sexually active women. Treatment is above all preventive. It is based per-partum on perfect management of all cases of difficult labour. Peroperatively, the technique used during each cesarean section must be carefully defined and followed. Treatment of a confirmed VUF is essentially surgical.