Well, testicles go up and down. They go up and are closer to the body when it is cold, and hang lower when it is hot. For baby puppies, the drop and then they sneak back up there. And they will continue to do this until the ring closes and then they are either up or down. If they are up when the ring closes, then you have undescended testicles. If one is up, then you have a single undescended testicle.
I have heard various tales about how late testicles might drop, but a lot of people think 4 months should do it. I have a friend who said she sold a pup as a pet at 8 months because of the testicles not being down, and at 11 months, the lady was showing the dog, they had come down. Not sure if I believe it though.
Jenna, RN CGC & Babs, CD RA CGC HIC
Heidi, RA CGC
SG3 Odessa, SchH1, Kkl1, AD
Ninja, RN CGC & Milla, RN CGC
Joy, Star Puppy, RN CGC
Dolly CGC & Bear CGC