Hi all! Monte, my soon to be 7-year old white boxer is seemingly healthy. He does have a moderately low thyroid, which we treat with a low dose of Thyrosine. He's got a small patch of bald skin in between his shoulder blades, where the hair is slowly growing back. Other than being a pound or two overweight, he's great. Over the past few weeks i've noticed that he's gotten a good deal of brown spots that have popped up on his rear end and tail. And they're not on the skin underneath ( he's always had brown and black spots on the skin under the coat ), it's almost as if they hair at the root has changed color. Any reasons as to why that would be happening? He seems fine, eating and drinking regularly, we take long walks every day that he loves. It's just plain weird. Any thoughts?