Cryptorchidism:

Cryptorchidism, the most prevalent congenital abnormality involving male genitalia, is characterized by the absence of at least 1 testicle from the scrotum. Approximately 3% of full-term and 30% of premature male infants are born with 1 or both testicles undescended. Cryptorchidism is when one or both testes are not in the scrotal sac. Learn about its diagnosis, treatment, complications, and referral guidelines from BMJ Best Practice, a trusted medical resource. Cryptorchidism - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the Merck Manuals - Medical Professional Version. Cryptorchidism is a congenital anomaly in which one or both testicles do not descend into the scrotum. Learn about its types, origins, consequences for male fertility and treatment options.