Monorchidism and Cryptorchidism - Page 1

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by nonacona60 on 27 January 2010 - 06:01

I was reading SV standards and read that Cryptorchidism is a fault and will not get a breedable rating. However, it does not say anything about Monorchidism. So does it mean  that breeding a male that has monorchidism characteristic traits is acceptable for breeding..?

by Lief on 27 January 2010 - 10:01

In that context they probably mean ''hidden'' testicles of any a monorchid would have a hidden  testicle.  I don't know of any breed club that allows showing of dogs like that albiet unless the breed club was a governing body breeding would not be an issuse aside from the social stigma  We live in a male dominated Global Society where  ''testicles are oh so important and represent oh so much'' 

by hodie on 27 January 2010 - 17:01

Technically speaking, there is a difference between monorchidism and cryptorchidism. Monorchid dogs develop only ONE testicle. Cryptorchid dogs may have one or both testicles but one or both do not drop down. These dogs, when both testicles are retained, are often sterile. Both conditions are faults that should prevent the dog from ever being bred and neither can be shown. There is a well written and documented article of interest at:


And there are plenty of other reliable sites which can provide additional information. 

by pod on 28 January 2010 - 14:01

Cryporchidism simply means that one or both testicles haven't descended into the scrotum.  So if a dog is monorchid, he is automatically cryptorchid.  There is no need to list monorchid separeately in the breeding regulations if cryptorchid is already stated.


by nonacona60 on 28 January 2010 - 15:01

I was always under the impression that if one testicle desended it was monorchid and if neither desended it was cryptorchid and the first wasn't as bad as the second. What would it be considered if both testicles were down but then one went up and didn't come back down again? Both there to start with,  but poof... one disappears?  I know this is not good, but what is it called...other than a problem. LOL

by hodie on 28 January 2010 - 15:01

 It is cryptorchidism.

by Langhaar on 29 January 2010 - 14:01

Surely the title is irrelevant, the result is the not use for breeding!

by jc.carroll on 30 January 2010 - 12:01

It's a trait that's carried by females too though, albeit they obviously can't express it because their sex organs are already tucked neatly inside their abdomens. Carrier females can be suspected when they almost always throw at least one c/m pup their litters, regardless of who they're paired with.

So, on the same topic I wonder about breeding a known female carrier... or breeding a female full-sibling to a c/m male. Studs are blamed for being the problem, but it can just as easily be the dam. So theoretically the odds of a female passing it a long can be just as high as an expressed male being bred. It's just not visibly observable on the female.

Just something to mull over.

by Goose on 30 January 2010 - 14:01

Monorchiden und Kryptorchiden are both listed as not being qualfied to get a breedable rating! Pasted the first 3 words right off the SV site. I had to check but I thought that both are disqualifying faults.

by Jackal73 on 30 January 2010 - 16:01

 This may not be a question that has an answer, but what about cases where the cryptorchidism is due to circumstance?  I'm reasonably certain my guy was a cryptorchid due to a developmental accident -- one testicle had descended normally, and the other was caught in the inguinal ring (meaning it had been descending, and just got caught up).  It doesn't matter to me since I wouldn't breed in any case and he was neutered due to coming through a rescue, but in theory a dog could be perfectly sound genetically and still be a monorchid.  Would this be a case of "don't breed just to be safe" if the dog was otherwise desirable?

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