UNILATERAL CRYPTORCHIDISM; SUBSEQUENT EFFECTS ON FERTILITY

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Abstract
Seminal studies carried out in thirty-four cases of untreated, post-pubertal, unilateral cryptorchidism have revealed a high incidence of sterility and severely impaired fertility, while the seminal findings of six cases of retractile testis showed no diminution of fertility. Testicular biopsies, carried out in two retractile testes, confirmed their normality, while similar studies of seven pubertal retained testes and nine pubertal ectopic testes showed that spermatogenesis is more severely damaged in the former than it is in the latter. Further biopsy studies of eight contralateral gonads in unilateral cryptorchids have disclosed an unexpectedly high incidence of spermatogenic arrest in the so-called normally descended opposite testis.

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