There are many techniques of vaginoplasty in congenital malformations of the vagina, all of which involve the use of labial and perineal skin flaps. The results are not uniformly satisfactory because of delayed stenosis in many patients. To avoid this complication, we have used labial expansion with tissue expanders to obtain an elastic and sufficiently large skin flap. We recommend this technique in patients with the adrenogenital syndrome associated with varying degrees of virilisation and in other intersex anomalies.