In this abnormality the external urethral orifice is present on the inferior aspect of the penis. It is a common anomaly (incidence: 1 in 300 male infants), and occurs due to the faulty fusion of the urethral folds. Various varieties of the hypospadias have been described, out which 80% belong to the following two types: (1) glandular hypospadias, in which the urethral opening is present on the ventral surface of the glans penis, and (2) penile hypospadias in which the external urethral meatus is present on the ventral (inferior) surface of the shaft of the penis. The uncommon varieties of hypospadias include penoscrotal hypospadias and perineal hypospadias. In the penoscrotal type the urethral opening is present at the junction of the penis and scrotum. In the perineal type of hypospadias the urethral folds and the labioscrotal swellings fail to fuse with
each other entirely. Consequently, a wide sagittal cleft is found along the entire length of the penis and scrotum.