What would cause a dog to develop a patch of fur on his tail that is discolored and a lot more coarse than the rest?
my chocolate lab has ALREADY seen the vet and they weren't able to tell me what has caused this. they DID say it's probably nothing to be concerned with, so that's good to know, but I am curious. he's 4 1/2 years old but this discolored fur didn't appear til he was about 2years old. i wonder if its a vitamin deficiency or something? he really is given the best of the best when it comes to food. he is very well taken care of and all of his shots and such are up to date. To describe the patch a little better, his whole body is dark brown, but the patch is grey and very light brown. if any of you can shed some light on what might be going on here, please let me know! thank you!