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Medical illustration of male genitalia with testicles highlighted.

Cryptorchidism

Cryptorchidism, or undescended testicles, happens when a testicle is not in the right position in the scrotum. This guide covers its causes, symptoms, and treatment to help with understanding and care.

Which applies to you?

This chapter contains general information about cryptorchidism. It is not a substitute for professional medical advice or treatment. Always consult your doctor or healthcare provider for guidance on your individual medical situation.

Last updated: July 2026

Reviewed by (2026 update): 

  • Dr. Uchenna Kennedy (EAU Guidelines Panel on Paediatric Urology)