Cryptorchidism is the most common genitourinary disorder of childhood.
Even though its incidence has changed only slightly over the years, t
he number of operations for cryptorchid testes has tripled. Better und
erstanding of the natural history of cryptorchidism, as well as change
s that occur in testicular histology both in the cryptorchid and the c
ontralateral descended testis very early in life, are the cause. This
experience has led us to advocate early orchiopexy as the optimum mean
s of treatment.