A dog chewing paws can mean many things

I have a Mini Brindle Australian Shepherd who chews on his paws. He's been doing this for about a week or two, but I have no clue why. I did research and a few said it may be his diet or something in the yard bothering his paws...which doesn't make sense, because he has not had anything changed in his life in that regard, I don't think. He has the same food as he has always had since he was a puppy (he's about two years old and never done this before until recently), and though we've moved to a new house and yard, I also have three other dogs and none of them are biting/behaving oddly? We've been here for about two months now, and he was fine until recently. Plus, he just went to the vet for a checkup (literally a week ago) and they found nothing wrong

Dogs That Bite When Getting Their Paws Touched – Dog Training – Dog Trainer – Behaviorist

Why does my dog lick and chew his feet?

In this video we show you how to stop your dog from licking and biting their paws using all natural household products! The problem is likely a yeast or bacterial irritation from walking around on various surfaces. If your dog likes to go on hikes and swim in ponds like Rudy, this paw-rinse may help!

PAW RINSE MIXTURE
Approximately 2 Tablespoons Baking Soda for 2 Litres of Water.

We use a mixture of water, baking soda, and juniper berry essential oil (DoTerra) for the foot-soak. The oil is just an extra - it will still work with just baking soda and water! Give your puppy some relief with this quick and easy solution.

This is an all-natural way to clean your dogs paws, and hopefully prevent further irritation that can lead to a visit to the vet! If your pet has any serious issues, please make sure to have a PROFESSIONAL diagnose them. This just works for us!

It could be a sign of a medical or behavioral problem

Dogs may be discouraged from licking their paws by using products such as Bitter Apple spray or an Elizabethan collar. What looks like nail biting isn't always actually nail biting. Dogs lick and chew at areas of their paws when something's stuck in their pad or when they have allergies, but both cases usually result in pups biting at their paws instead of the actual nails. But your little guy is biting at something, and that needs to be fixed; so whisk him away to the vet's office as soon as possible.

Why Do Dogs Chew Their Feet? - K9 Magazine

Like yeast, bacterial organisms also are normally found on your dog’s paws, but a secondary health condition can cause them to multiply excessively. Symptoms include licking/biting, redness, swelling, pain/itching and abscess. Your vet can take a sample tissue from the affected area and evaluate it to determine if bacteria are the problem and, if so, prescribe either oral or topical antibiotics and antibacterial shampoos and soaks.

Keeping Dogs' Paws Healthy - AKC Canine Health Foundation