Cryptorchidism Cryptorchidism Cryptorchidism is the absence of one or both testes from the scrotum. The word is from the Greek κρυπτός, "kryptos", meaning hidden, and ὄρχις, "orchis", meaning testicle. It is the most common birth defect of the male genital tract. 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.
From the Earth to the Moon the first recorded use of this term in history. In H. G. Wells' 1901 novel "The First Men in the Moon" (also relating to the first voyagers to the Moon) the protagonist, Mr. Bedford, mentions Verne's novel to his companion, Professor Cavor, who replies (in a possible dig at Verne) that he does not know what Bedford is referring to. Verne returned the dig later when he pointed out that he used gun cotton to send his men to the moon, an actual substance. "Can Mr. Wells show me some 'cavourite'?", he asked archly. The novel (along with Wells' "The