Cryptorchidism in Cats

What is Cryptorchidism?

Cryptorchidism is a condition when one or both testes fail to descend into the cat’s scrotum. The testes normally descend into the scrotum when an animal is still very young and for cats this is usually before birth. When cryptorchidism occurs then the testes that has not descended is retained somewhere in the lower part of the body.

What causes Cryptorchidism?

This condition affects approximately 2% of all cats, and purebred or pedigree cats are more likely to be affected. Of the pedigree cats, Persians and Himalayans breeds are most affected by cryptorchidism with 10-29% diagnosed with the condition. The exact cause is not fully known.

What are the symptoms of Cryptorchidism?

Cryptorchidism is rarely associated with pain or other clinical symptom, until or unless a complication develops. If both testicles are retained, the cat will be infertile he will continue to produce testosterone but not sperm.

The most common clinical sign of cryptorchidism is spraying, scent marking and aggression.

Treatment for Cryptorchidism

Treatment for Cryptorchidism involves neutering the cat and removing its retained testicle(s) as soon as possible. For cats that undergo this surgery the prognosis is excellent.


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