I've been having the same problem! Our female (spayed) is 14. It's been a little over a year since my son brought home a male about 9 months old. He torments her terribly. We had him neutered but for about 3 months after he still was trying to mou...

I have a 2 year old male rottie, about 112lbs. Last year he had a calcium deposit taken off his tongue. Now we see a black spot in the back of his tongue about the size of an eraser and flat.
Any thoughts about this?