[Duplication of the urethra in boys]

Duplicity of the urethra as an isolated unit is found only in men. According to the classification of Williams and Kenawi of 1975 most frequently sagittal duplicity is involved. As to the site of the orifice of the ectopic urethra different types are found - epispadic, hypospadic, spindle-shaped type of urethra and Y-shaped duplicity. The authors discuss three patients where they diagnosed and treated three different types of duplicity.