Undescended testicle (cryptorchidism) is a testicle that hasn't moved into its proper position in the bag of skin hanging below the penis (scrotum) before birth. Usually just one testicle is affected, but about 10 percent of the time, both testicles are undescended.
An undescended testicle is uncommon in general, but quite common among baby boys born prematurely.
The vast majority of the time, the undescended testicle moves into its proper position on its own, within the first few months of life. If your son has an undescended testicle that doesn't correct itself, surgery can relocate the testicle into the scrotum.
April 11, 2013
- Ashley RA, et al. Cryptorchidism: Pathogenesis, diagnosis, treatment and prognosis. Urologic Clinics of North America. 2010;37:183.
- Cooper CS, et al. Undescended testes (cryptorchidism) in children and adolescents. http://www.uptodate.com/home. Accessed Feb. 15, 2013.
- Kliegman RM, et al. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa.: Saunders Elsevier; 2011. http://www.mdconsult.com/das/book/body/208746819-6/0/1608/0.html. Accessed Feb. 15, 2013.
- Lao OB, et al. Pediatric inguinal hernias, hydroceles, and undescended testicles. Surgical Clinics of North America. 2012;92:487.
- Nippoldt TB (expert opinion). Mayo Clinic, Rochester, Minn. March 28, 2013.
- Granberg CF (expert opinion). Mayo Clinic, Rochester, Minn. March 28, 2013.
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