Liz Buchanan BVSc MRCVS
Keymaster
Hello!- Bilateral cryptorchid male cats are pretty rare and castration before the age of four months is relatively common. It is very common for castration to leave no scar, so vets cannot reliably distinguish between the two from an external examination of a cat. It is therefore common in UK rescue practice to assume that if there are no testicles, then the cat has been neutered. This proves to be reliable for the vast majority of the time. However, rare cases do come up where assumed 'castrated' rescue cats have presented with internal testicular cancer at an early age and I agree that it would be a shame to miss one of these cases, so if blood testing is available then I can see why you might consider it. I look forward to hearing how things work out!
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