TL;DR: Over-grooming near the bladder is often a sign of stress or urinary discomfort; while usually non-urgent, seek immediate care if your cat is straining to urinate or has blood in their urine.
Why is my cat over-grooming near their bladder?
When a cat licks their lower abdomen until the skin is bald, it is known as over-grooming or psychogenic alopecia. This behavior is often a response to:
- Physical Discomfort: Feline lower urinary tract disease (FLUTD) can cause a cat to lick the site to soothe internal bladder pain.
- Psychological Stress: Environmental anxiety or behavioral changes.
- Skin Irritation: Skin allergies or parasites focused on the lower abdomen.
Is over-grooming near the bladder a medical emergency?
- Low Urgency: In most cases, this is a chronic issue. If the skin looks healthy, you can schedule a routine appointment with your veterinarian.
- Emergency Red Flags: Seek immediate care if your cat is straining to urinate, unable to pass urine, or has blood in their stool or urine.
How does taking a photo of the area help with my cat's triage?
Capturing a clear, close-up photo of the bald patch is incredibly helpful for veterinary triage because it allows a professional to:
- See the condition of the skin to check for redness, bumps, scabs, or signs of secondary infection.
- Track the progression of the hair loss over time to determine if the area is expanding.
- Provide a visual baseline to see if the skin's texture is changing due to the constant friction of the cat's tongue.
Clinical Context (Merck Veterinary Manual)
Excessive grooming, self-mutilation, and self-directed aggression in cats, particularly around the belly and bladder area, can stem from underlying medical conditions causing neuropathic pain or pruritus. Rule out medical problems such as adverse food reactions, atopic dermatitis, and parasitic hypersensitivity. Pruritus or pain can also be caused by infectious skin diseases, ectoparasites, or allergic skin diseases. Cystitis caused by disorders of micturition, anatomic abnormalities, and/or concurrent diseases (chronic kidney disease, hyperadrenocorticism) can cause a cat to over-groom its bladder area. Diagnostic considerations should also include feline immunodeficiency virus, feline leukemia virus, and hyperthyroidism.
Chapter: Behavioral Medicine, Dermatology, Neurology
Source: The Merck Veterinary Manual, 11th Edition (Page 1574)