TL;DR: Cats chewing their foot pads usually indicate underlying irritation, allergies, or injury; while generally not an emergency, a vet visit is recommended to prevent secondary infections.
Why is my cat chewing or over-grooming its foot pads?
When a cat focuses its grooming on its foot pads, it is usually a sign of irritation, pain, or itchiness. This behavior, known as pedal pica, can be caused by several factors:
- Environmental allergies
- Localized injuries such as splinters or burns
- Feline Plasma Cell Pododermatitis (often referred to as 'pillow paw')
Is it an emergency if my cat is biting its paws?
Urgency Level: Low. While chewing at the foot pads is typically not a life-threatening emergency, you should take the following actions:
- Schedule a non-emergency appointment if the behavior is persistent to prevent secondary bacterial infections or open sores.
- Seek urgent care if you notice active bleeding or extreme swelling.
- Seek immediate veterinary attention if your cat is completely non-weight-bearing on that leg.
How can taking a photo of my cat’s paw help the veterinarian?
Taking a clear, high-resolution photo of the affected foot pad can be an invaluable tool for your veterinary team because:
- Cats often hide their paws or become stressed during clinic exams, making physical inspection difficult.
- A photo allows the vet to see the exact color, texture, and presence of any lesions or foreign bodies in a calm environment.
- This visual evidence helps differentiate between a simple dry pad and a more complex dermatological issue.
Clinical Context (Merck Veterinary Manual)
Self-mutilation, excessive grooming, and self-directed aggression directed at the foot pads can be due to underlying medical problems that cause neuropathic pain or pruritus. Conditions to consider include adverse food reactions, atopic dermatitis, parasitic hypersensitivity, infectious skin diseases such as bacterial pyoderma and dermatophytosis, ectoparasites, allergic skin diseases (e.g., atopic dermatitis, food allergy, contact, insect hypersensitivity), and, less commonly, neoplastic skin diseases. Neuropathic pain, dermatologic conditions, myopathies, and focal seizures can also manifest similarly. A therapeutic trial for neuropathic pain, seizures, pruritus, or compulsive disorders may be necessary during the diagnostic process.
Chapter: Behavioral Medicine, Dermatology, Neurology
Source: The Merck Veterinary Manual, 11th Edition (Page 1574)