Introduction Embryological malformations of the urethra (urethral groove) may involve the urethral folds or genital tubercle Two main types epispadias urethra opens on dorsal surface of penis login to view 1 more bullet defect in the genital tubercle hypospadias urethra opens on ventral surface of penis login to view 1 more bullet defect in closure of urethral folds login to view 1 more bullet associated with a ventral curvature of the penis (chordee) risk factors login to view 2 more bullets