My 6 month old puppy still has just the one testicle, some show people at ring craft have suggested hormone injections? Has anyone done this and what is the name if the injection?

Thanks

Have never heard of that, time will bring the other one down if it's going to come. Also don't keep looking :-D

Never heard of hormone injections for retained doo dahs. Check up by the vet may be in order. Can't show a dog with just one I'm afraid. He may have to have it removed as a retained one can allegedly cause cancer. I had 2 from the last litter (now 10 weeks) with only one, now just 1 (would be the one I have kept, sods law)

Hormone injections ( testosterone ) can be tried but are not that effective. The same treatments can be used in humans but the preferred option is to surgically bring down the testicle and suture in position in baby boys. In dogs the inguinal canal closes at approx six months ( can be later in large / giant breeds  ) , if normal development and testicular decent is abnormally slow the testicle grows whilst in abdomen and is then too large to descend and thus retained.  If testicles are not fully descended by puberty there is little that can be done other than remove the retain testicle

This article may be of interest http://caninegeneticreserve.com/documents/articles/Cryptorchidism_in_dogs_-_how_why_and_what_to_do_about_it.pdf

As  the article klb linked to says, it's an inherited defect. Retire the dog from the show ring and don't use him as a stud. If the missing ball doesn't come down (and since he's over 16 weeks, it probably won't) consider getting him castrated as the cryptorchid testicle is 8x more likely than a normal one to become cancerous. Testicular cancer is still uncommon...but if the ball is tucked up in the abdomen you wouldn't know if it ever started to become cancerous till the cancer was well advanced. If you prefer to get the undescended testicle removed but leave the descended testicle on for whatever reason (as an aid to weight control etc) then be sure to keep his microchip details up to date, in case he ever gets lost and ends up in a rescue with the rescue vet fruitlessly guddling around in his abdomen looking for a testicle that isn't there.

My oldest dog's testicles didn't come down permanently until he was over 6 months-my vet wouldn't consider castration until he was at least 18 months old & as advised by my vet many years ago, I would only have the retained testicle removed.

Although cryptorchidism nearly always refers to congenital absence or maldescent, a testis observed in the scrotum in early life can occasionally "reascend" (move back up) into the inguinal canal. A testis which can readily move or be moved between the scrotum and canal is referred to as retractile. BTW the more you check the more likely the puppy is to have a retractile testicle