They do go up and down until the ring closes. If it's in the canal it can be massaged down or they can give hormone shots to help it drop.
My puppy only has one down and the right one is in the abdomen. I went to a specialist yesterday and was told it will not come down. I was told to either have him neutered between 12 months and 18 months or we can have the non descended one taken out and leave him with the one that is down. She also said to ensure he does not breed they can do a vasectomy.
We will probably just have him neutered after he is 12 months.
Riley - 11/05/2012-8/30/2013 (Myasthenia Gravis)
He will always be in my heart.