There can be many reasons why your dog may bite their paws, some of which may be health issues such as skin disease, inflammation or parasitic infection, or anxiety or stress due to environmental factors. It may also be the dog's own habits, such as being accustomed to biting its paws since childhood. If your dog has a habit of biting his paws, it is recommended that you take him to the veterinarian as soon as possible to determine the specific cause and implement appropriate treatment.
If paw-biting is caused by anxiety or stress, you can try by providing adequate activities, walking, playing, and interacting with your dog Dog interacts to reduce its anxiety. You can also try pet rehabilitation techniques, behavioral training, or other methods to help your dog overcome this habit.