Greetings! I don't know how to express my concern without sounding like I'm checking out my dog's junk, so I'll just come right out and say what needs to be said I have two pups, 16 and 13 weeks, and I am positive that both have had their testicles descend into position for quite some time. This morning, I noticed that one of Sarge's testicles has retracted back up into his abdomen as he was laying spread eagle on his back. Sarge is the younger of the two pups. There's a slight bulge just above and beside the descended testicle that I'm confident is the other previously dropped testicle. Can a dog's testicles descend and retract? Is it something I should be concerned about? Sarge is still quite young and I'm hopeful that his "bits" will fall into place without any problems. I'm just an over-paranoid mommy who needs a bit of reassurance from others who have similar experiences. As always, I am most grateful for the knowledge and advice shared here.