This Scared the crap out of me the first time I saw it with my Pied Girl I thought for sure she had mouth rot. Not only does she have almost the exact same marking on the bottom of her jaw. But she had a very dark almost black spot right in the split of her lower jaw Thanks goodness my vet will take a look at pics Via Email he said it was normal. I would post pics but I cant find the ones I sent the vet and she just ate today but I vote NORMAL![]()