Purpose: to present the using of tunica vaginalis flap to prevent and to repair urethrocutaneous fistula in hypospadias surgery. Materials and methods: From 1/2006 to 7/2009 18 hypospadias and 4 urethrocutaneous fistulae were treated at Children Hospital N. 1 using tunica vaginalis flap Results: 18 hypospadias and 4 fistulas were repaired with the support of tunica vaginalis flap.