Spermatogenesis in the unilateral cryptorchid testis after orchiopexy.

We herein examine the role of orchiopexy in the child with unilateral cryptorchidism and specifically discuss whether this operation produces a testis capable of good sperm production. Contralateral vasectomy was performed in subjects who previously had undergone unilateral orchiopexy. Semen analysis from the previously operated testes showed marked diminution in spermatogenesis.