Why Does My Dog Bite and Chew Its Own Paws?
Chewing goes a step beyond licking — persistent biting at the paws usually means stronger itch, hidden pain, or mounting stress, and broken skin invites infection.
Licking and chewing sit on the same spectrum, but teeth mean the irritation has escalated. A dog that gnaws at its toes is usually dealing with an itch too strong to soothe by tongue, a painful spot between the pads, or a stress habit that has found a target. The behavior deserves attention before the skin breaks.
Finding what the teeth are aiming at
Spread the toes and look between the pads: redness, moist sores, a swollen bump, or a stuck grass awn are common finds. Allergic itch and interdigital cysts top the medical list, while fleas favor the paws and tail base. How intensely a given trigger drives chewing differs from dog to dog, so a mild-looking paw can still be maddeningly itchy.
If nothing is visible, watch when the chewing happens — after walks points to contact irritation, during quiet evenings points to boredom or anxiety. Broken or bleeding skin, limping, or chewing that continues for days are cues to have a veterinarian examine the paw; secondary infection sets in quickly once the surface is open.
MediIndex articles are for general information only and are not medical advice, diagnosis, or advertising. Outcomes vary by individual — consult a board-certified specialist for personal decisions.