[Supernumerary urethras in men. Report of supernumerary blind epispadias].

Supernumerary urethra, a rare anatomical anomaly, can be explained by various embryological theories, accounting for the multitude of classifications proposed. Its diverse, minor or very severe clinical manifestations suggest the diagnosis, which is confirmed by retrograde and voiding cystourethrography. Treatment is surgical or, more rarely, endoscopic.