Sounds like worms call your vet
Some breeds grow very good winter coats and others don't I have a quater horse who looks like a bear in the winter and a standardbred that only gets a light winter coat so one wears one and the other one dosent! Unless it gets in the teens or lower then they both do
Have you had your dog dewormed?? He may have them and can feel it down there and don't know what else too do
