TL;DR: Over-grooming is typically a sign of underlying pain, allergies, or stress and requires a veterinary exam within 24-48 hours, especially if the skin is raw. Seek immediate care if you notice signs of infection like pus, swelling, or lethargy.
What is feline over-grooming and why is my cat licking its fur off?
Over-grooming, known clinically as psychogenic alopecia or feline barbering, occurs when a cat compulsively licks a specific area—most commonly the abdomen—until the fur is gone and the skin is irritated or raw. This behavior is rarely just a bad habit; it is typically a physical or psychological response to underlying itchiness, localized pain, or significant environmental stress.
Is it an emergency if my cat is grooming their stomach until it is raw?
- Urgency Level: Medium. While this is generally not an immediate life-threatening emergency, it is a sign of distress that requires a veterinary appointment within 24 to 48 hours.
- Seek prompt care: If you notice signs of a secondary infection, such as pus, extreme swelling, a foul odor, or if your cat becomes lethargic, you should seek veterinary care more quickly.
How does taking a photo of the affected area help with my cat's triage?
- Assessing Severity: A clear, well-lit photo allows a veterinary professional to assess the severity of skin damage and the pattern of hair loss without causing the cat further stress.
- Identifying the Cause: Photos help determine if the cause appears to be dermatological, such as a flea allergy or fungal infection, or if the skin looks healthy but the hair is simply being removed, which points toward behavioral or stress-related causes.
Clinical Context (Merck Veterinary Manual)
Excessive grooming in cats, potentially leading to self-mutilation and raw skin on the stomach, can be attributed to underlying medical problems that cause neuropathic pain or pruritus. These include adverse food reactions, atopic dermatitis, parasitic hypersensitivity, infectious skin diseases such as bacterial pyoderma and dermatophytosis, ectoparasites, allergic skin diseases (atopic dermatitis, food allergy, contact, insect hypersensitivity), and, less commonly, neoplastic skin diseases. Flea allergy dermatitis is a common cause of feline symmetrical alopecia, presenting as a clinical sign of an underlying pruritic disease, even without obvious flea infestation. A complete blood count with differential is recommended to rule out underlying conditions.
Chapter: Behavioral Medicine, Dermatology, Neurology
Source: The Merck Veterinary Manual, 11th Edition (Page 1574)