paw knuckling can cause physical injury to the top or sides of the foot. This is due to the dog standing on the top of their paw rather than on the paw pad.
Scraped area on the skin or on a mucous membrane, resulting from injury or irritation. Lesion, typically on the distal portion of one or more limbs, resulting from excessive licking. May be red, swollen, irritated, bleeding, eventually becoming a thick, firm, plaque. A condition characterized...