3 months , one ball!!! - Page 1

If your dog has an undescended testicle it shoud not be bred.  Why do the surgery, just have him neutered?

Yes, because this is genetic and the possibility of he passing it on may continue.  Thus never ending the problem.

 I had a veterinarian who did a lot of these surgeries for the show boxer people. They have this problem so much in their breed (allegedly) that they can no longer get away from it. I had him do it once for me, a long time ago, with a dog which eventually did not even OFA certify, so it was a waste of money and time.. except that it was so interesting.

He explained it to me, that there is a very small muscle which pulls the testicle down when the pup is very young. It does only this one thing, one time, and then the little muscle atrophies and dies. Occasionally, the teste will come down and then go back up, again. In this case, there is nothing you can do but the surgery. Humans can be brought down sometimes with a shot, but this does not work on dogs.

At any rate, they must get to it right away.. definitely within two weeks, but preferably sooner. The blood supply for the testes and other connective tissues come from the area around the kidneys. If the testicle is not down in the scrotum, these also begin to shrink and pull the teste back up to the region of the kidneys. Because they have shrunk, you can never stretch them down, again.

And, if the teste is inside the body, it cannot produce sperm, but it can begin to act like an ovary, producing estrogenic hormones, and may eventually become cancerous, possibly causing prostatitis, and other problems (probably around 8 years of age). In horses, retained testes are known to cause viciousness, but I don't think this is so with dogs. 

I agree with the other poster, that it is unwise and unethical to do this surgery with the possibility to do some breeding, later on. If you do this surgery, you should probably either castrate or vasectomize the male. Vasectomies are great! A vasectomy can qualify the dog as a "sterilized" pet, for licensing requirements, and if you really, really, really want a breeding later on from a vasectomized dog, they can be collected and the sperm frozen, from sperm cells in the vas deferens or epididymus portion of the teste, later on. 

I am very, very certain that the tendency to cryptorchidism (undescended testicles) is inherited, by one or more genes. You cannot fool "Mother Nature". The more surgeries you do to corrected cryptorchid dogs, the more you will have to do in the future. Do yourself a favor and forget about this option. 

thanks for the explanation........

It is also un-ethical &  against the rules......."altering the dog's physical appearance".....I don't think that you should even consider it.
JMO