Five cases of VUF have been observed by the authors over a period of 15 years, reflecting the rarity of this condition. Based on a review of the literature, the authors present an exhaustive study of the various aspects of VUF: 1) aetiopathogenic features: they emphasise the rarity of the disease and its aetiology which is currently dominated by caesarean section; 2) clinical features with little variability in the symptoms (urine leak from the vagina with or without associated menouria) and the usually simple diagnosis based on a thorough clinical examination and routine complementary investigations (IVP, cystography...); 3) lastly the therapeutic aspects, based on surgical cure, which is almost always satisfactory. On the basis of their experience and their results, VUF constitutes a benign lesion, but a source of discomfort, which should be prevented.