One clue can be an uneven wear on a dog's rear nails, though this can be. If the dog's foot is placed on the ground, toes down, the dog will not right its foot, .
Dogs who are dragging their paws are most likely unaware of the placement of their feet. This will occur when there is a loss of communication between the brain and nerves, which can be because a nerve has been stretched, cut or bruised.
Dragging Back Leg in Dogs – Why it Occurs, What to Do, Prevention and Cost – Wag!
If your dog is dragging the tops of his paws when he walks, there is definitely. His normal response should be to immediately lift the paw and replace it correctly
Degenerative Myelopathy initially affects the rear legs first. The dog may start to drag a foot on walks and the owner can hear or see this. The two middle nails on
He now runs around like a young dog after his balls and no one would guess he is over 7. I have an 8 1/2 yr old girl & she started dragging her back left paw.