a condition in which the male testes fail to descend into the scrotum is called
Cryptorchidism Cryptorchidism is the absence of one or both testes from the scrotum. It is the most common birth defect of the male genital.[1] About 3% of full-term and 30% of premature infant boys are born with at least one undescended testis. However, about 80% of cryptorchid testes descend by the first year of life (the majority within three months), making the true incidence of cryptorchidism around 1% overall. Cryptorchidism may develop after infancy, sometimes as late as young adulthood, but that is exceptional.