Scrotal septal flap and two-stage operation for complex hypospadias: A retrospective study

Figure 3 Illustration of the surgical procedure. A: Vessel distribution and innervation of the scrotal septal flap; B: The operation was necessary to remove the mucosal wall of the urethral fistula; C: There is only one waterproof layer after one-stage surgery; D: There are two waterproof layers and enough tissue for fistula repair after the two-stage surgery.