Why Is My Dog Licking and Chewing His Paws?

Common Causes of Paw Licking

Dogs may lick or chew their paws due to medical conditions such as acral lick dermatitis, also known as acral lick granuloma. This condition causes a raised, hairless ulcer or callus-like plaque on the lower leg, often from incessant licking. The constant licking can lead to itching, secondary bacterial infections, and further damage. In some cases, the behavior is linked to psychological factors like boredom or anxiety, especially in dogs with high energy or oral tendencies.

Behavioral Triggers and Compulsive Patterns

Excessive licking can become a compulsive behavior, especially in large breeds like Labrador and Golden Retrievers. Dogs may develop this habit due to frustration, lack of stimulation, or early-life deprivation (e.g., insufficient sucking satisfaction in puppies). In extreme cases, dogs have caused serious injury—like chewing off a human’s toes—due to persistent licking of skin, especially when the person has reduced sensitivity. This behavior is considered allomutilation and requires joint treatment by a vet and behavior counselor.

The Vicious Cycle of Pain and Reward

Licking can create a self-sustaining loop. When a dog licks a sore, the body releases natural painkillers (endorphins). If the dog stops licking, the endorphins drop, causing withdrawal-like discomfort. This drives the dog to continue licking to maintain the pleasurable sensation, even if it worsens the injury. This cycle makes the behavior hard to break without intervention.

Veterinary and Behavioral Treatment Steps

First, consult your vet for a full physical exam, bloodwork, urine tests, and dermatology evaluation. Underlying medical causes must be treated before behavioral strategies are effective. If the issue is behavioral, increase daily aerobic exercise and mental stimulation. Enroll in a punishment-free training course—like tricks, obedience, or musical freestyle—to give your dog a “job” for their mind. Use puzzle toys, stuffed Kongs, and treat-dispensing devices to keep them occupied when alone.

Stopping the Behavior: Practical Tools and Techniques

Use an Elizabethan collar to prevent access to the paws during recovery. Teach incompatible behaviors—like fetching a toy or resting the head on a cushion—so the dog can’t lick while doing something else. Clicker training is recommended to shape these new behaviors effectively. Avoid any training methods involving punishment, as they can worsen anxiety and compulsive behaviors. Consistent, positive communication between you and your dog is essential.