When a cat stops grooming, it is almost always a sign of pain, illness, or significant distress — not laziness. A cat that was previously fastidious but now has a dull, matted, or unkempt coat is telling you something is wrong.
Last reviewed: June 2026
Why Cats Stop Grooming Themselves
Cats are among the most devoted self-groomers in the animal kingdom, spending roughly 30–50% of waking hours on coat maintenance. When grooming stops or dramatically decreases, the cause is almost always one of three things: physical pain that makes grooming difficult, illness that depletes energy and drive, or a psychological change such as severe depression or chronic stress.
Pain and arthritis: The most common cause in older cats. Cats with arthritis of the spine, hips, or joints find it difficult or impossible to reach areas they used to groom — particularly the lower back, base of tail, and hindquarters. Matting in exactly these areas in a senior cat is a classic presentation of undiagnosed arthritis. As outlined by the AAHA Pain Management Guidelines, 2022, pain is chronically underrecognized in cats, and grooming cessation is one of the most reliable behavioral indicators.
Systemic illness: Cats feeling unwell due to kidney disease, liver disease, hyperthyroidism, diabetes, heart disease, or infections commonly stop grooming. The body's resources are directed toward fighting disease, and the drive and energy for normal maintenance behaviors disappears.
Obesity: Overweight cats physically cannot reach areas to groom them, leading to the same pattern of matting at the lower back and base of tail.
Dental pain: Oral pain can make the whole process of using the mouth for grooming uncomfortable, reducing the duration and thoroughness of grooming sessions.
Neurological issues: Cats with brain tumors, cognitive dysfunction, or strokes may show altered grooming behavior alongside other neurological signs.
Depression or chronic stress: A cat that has lost a companion, experienced a major change, or is chronically stressed may groom less, have a dull coat, and appear withdrawn.
What to Look For in Your Cat's Coat
Examining your cat's coat systematically helps identify the extent of the problem:
- Base of tail and lower back: First area to show neglect in arthritic cats
- Belly and inner thighs: Difficult to reach even without pain; neglect here is significant
- Around the face and behind the ears: Usually last to be neglected — if these are matted, the situation is severe
- Overall coat texture: A well-groomed cat has a smooth, slightly shiny coat. A sick cat's coat feels rough, dull, and may have a generally "flat" appearance
- Skin underneath mats: Mats pull the skin and trap debris, causing irritation and potentially infection underneath
What You Can Do at Home
Gentle brushing and grooming assistance can prevent mats from worsening and maintain your cat's comfort while the underlying issue is addressed:
- Use a wide-toothed comb and work through mats slowly from the tips inward, not the root
- For severe mats, carefully cut them away with blunt-nosed scissors — do not try to pull them out
- A slicker brush daily helps prevent new mats if the cat is grooming partially
- Keeping the coat shorter with regular professional grooming may help long-haired cats with chronic conditions
Do not apply human conditioners or detanglers — these can be toxic to cats.
When to See a Vet
Call your vet today if:
- Grooming has stopped or dramatically decreased over the past 2–4 weeks
- Your senior cat has mats on the lower back or base of tail (likely pain)
- The coat is dull and your cat seems to have less energy overall
- Decreased grooming is accompanied by changes in appetite, thirst, or litter box habits
Go to the ER immediately if:
- Sudden grooming cessation combined with severe lethargy and appetite loss
- Your cat appears in obvious pain, is reluctant to move, or is vocalizing
- You notice neurological signs alongside the grooming change (stumbling, head tilt, circling)
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Frequently Asked Questions
Is it normal for cats to groom less as they age? A mild reduction in grooming frequency with age can occur, but significantly unkempt or matted fur is never normal and always warrants investigation. Most healthy senior cats maintain good coat condition; deterioration signals an underlying problem.
Can I wash my cat if they're not grooming? A bath can temporarily clean the coat, but it does not address the underlying cause. Many sick or painful cats are stressed by bathing, which may worsen their condition. Focus on finding and treating the cause rather than cosmetic management.
How much does a vet visit for a cat that stopped grooming cost? An exam to investigate why a cat has stopped grooming runs $50–150. Bloodwork and urinalysis to screen for systemic illness add $150–300. Radiographs for arthritis evaluation add $150–350. Treating the underlying cause (arthritis management, dental care, disease management) varies widely.
My overweight cat can't reach her lower back — what should I do? Weight loss supervised by your vet is the primary goal. In the meantime, daily grooming assistance with a soft slicker brush at the lower back, and regular professional grooming sessions, prevents painful mats. Per the WSAVA Global Nutrition Guidelines, 2011, a proper weight loss program in cats should target 0.5–2% of body weight per week to avoid hepatic lipidosis.
What medications help arthritic cats groom again? Once arthritis is diagnosed, meloxicam (oral NSAID, prescription), gabapentin for neuropathic pain, and injectable polysulfated glycosaminoglycans (Adequan) can significantly improve mobility and comfort, often allowing cats to resume normal grooming within weeks.
Still Not Sure if Your Cat Needs a Vet?
When you're not sure if this is wait-and-see or call-tonight, Voyage AI Vet triages in under 2 minutes. Describe what you're seeing in chat, share photos of your cat's coat condition and any matted areas, or hop on a live video call if you want a second pair of eyes. Every answer comes with citations to the actual veterinary literature it's pulling from — so you see exactly where the guidance comes from, not just a chatbot's word.