In a study of 100 geriatric cats, 90% of those over 12 had degenerative joint disease visible on X-ray. In the same records, arthritis was mentioned by the owner or the veterinarian in 4% of cases. The distance between those two numbers is the most under-treated pain in companion animal care.
Cats almost never limp with arthritis, so owners watch for the wrong sign. As a solitary hunting species, cats conceal weakness; the disease presents as withdrawal from activity instead. The cat stops landing on the kitchen counter. It sleeps downstairs. It misses the litter tray edge. The coat over the hips goes unkempt. Each of these is filed under "getting old", and each is a reasonable description of joint pain — which is treatable.
The evidence at a glance
| Cats over 12 with radiographic DJD | 90% (Hardie et al., 2002) |
|---|---|
| Same cohort, arthritis noted by owner or vet | 4% |
| Cats over 6 with changes in ≥1 joint | 61% |
| Owners in that cohort reporting lameness | 13 of 100 |
| Detection with a structured checklist | 1% → 39% |
| Most affected joints | Hip, stifle, tarsus, elbow, spine |
What the primary studies found
Three studies are usually cited together, and they were done differently enough that the agreement between them matters.
| Study | Population | Finding |
|---|---|---|
| Hardie, Roe & Martin (2002) JAVMA 220(5):628–632 |
100 geriatric cats, 1994–1997 records | 90% of cats over 12 with radiographic DJD; arthritis mentioned in 4% |
| Clarke, Mellor, Clements et al. (2005) Veterinary Record 157:793–799 |
Hospital population | Radiographic DJD 33.9%; clinical signs 16.5%, mostly cats 10+ |
| Slingerland, Hazewinkel, Meij et al. (2011) The Veterinary Journal 187(3):304–309 |
100 cats, cross-sectional | Prevalence and clinical features of OA; confirms age association |
A separate randomly selected sample of 100 cats across four age bands found radiographic DJD in 92%, with total DJD score rising an estimated 13.6% for each additional year of age (95% CI 10.6–16.8).
The spread between 33.9% and 92% is not a contradiction — it reflects which joints were imaged and how. Studies using orthogonal projections of every joint find far more than those using single-plane views of a few. What all of them agree on is the direction: prevalence climbs steeply with age, and it starts younger than owners assume. One study suggested around 20% of cats aged one year and over already show some arthritic change.
90% of cats older than 12 years of age had radiographic evidence of osteoarthritis, even though only 4% of these had any mention of arthritis by either owner or veterinarian.
Summarizing Hardie EM, Roe SC, Martin FR. J Am Vet Med Assoc 2002;220(5):628–632. DOI: 10.2460/javma.2002.220.628
Why it goes unseen
Two reasons, and the first is biological. Cats evolved as solitary hunters, where visible weakness invites predation and loses territory. Concealing pain is the default. They do not limp dramatically, they do not vocalize, and a cat in significant discomfort will often purr.
The second reason is procedural: nobody asks the right question. One practice compared its own detection rates and found orthopedic problems in 1% of cats through ordinary consultation and physical examination. Applying a structured feline osteoarthritis checklist raised that to 39% — close to a fortyfold difference in the same clinic, on the same kind of patients. The disease had not changed. The question had.
The signs, in order of usefulness
- Height they have given up. The most reliable single indicator. A cat that used to land on the worktop and now routes via a chair, or has stopped going up entirely.
- Hesitation before a jump — the pause and re-measure, or scrabbling on landing instead of a clean drop.
- Litter tray misses. High sides hurt to climb. A cat toileting immediately beside the tray is frequently reporting pain rather than protesting.
- Unkempt coat over the back and hips, because rotating to groom there has become uncomfortable.
- A new sleeping spot, usually lower and warmer.
- Reduced tolerance of handling, particularly being lifted or stroked along the spine.
Several of these read as personality change or misbehavior, which is precisely why they are missed. If you take one thing from this article: write down what your cat can currently jump onto. That is your baseline, and a change in it is the earliest signal you will get.
What actually treats it — and what only helps
The order matters. Arthritis is managed medically. Veterinary pain relief and weight control do the work; environmental changes remove daily obstacles. Home adjustments are worth making, and they are not a substitute for a diagnosis.
Make height optional, not impossible
Cats want elevation — removing it is not the answer. Provide a route instead of a leap: a chair beside the sofa, a step to the bed, a perch lower than the windowsill.
Lower the sides of everything
A litter tray with a cut-down entry. A bed stepped into rather than climbed — a tall bolster is a wall to a stiff cat. Food and water at a height that does not require crouching.
Warmth and traction
Warm sleeping places away from drafts, and a mat or runner over slick flooring. Scrabbling on laminate is painful and frightening for a cat that no longer trusts its footing.
Weight
Every additional kilogram loads already painful joints. It is one of the few interventions that measurably changes outcomes, and it costs nothing.
Common questions
My cat is 8 and seems fine. Should I be doing anything?
Watch rather than worry. Around 61% of cats over 6 already show changes in at least one joint. Note today what your cat jumps onto — that record is what makes a future change visible.
Can I give my cat human painkillers?
No. Paracetamol is lethal to cats and ibuprofen is dangerous. This is an emergency-vet matter, not a caution. All feline analgesia comes from your veterinarian.
Do joint supplements work?
The evidence is considerably weaker than the marketing. They are not a substitute for veterinary pain management. We do not sell them, and we would suggest asking your vet before spending on one.
Is my cat just old?
That framing is the reason this article exists. Slowing down is not an inevitable feature of age; it is usually pain, and pain is treatable.
Will an X-ray settle it?
Partly. Radiographic change and clinical pain do not correlate perfectly — which is why the checklist approach, combining owner observation with examination, outperformed either alone.
What helps at home, and what each item is for
None of the following treats arthritis. They remove obstacles for a cat that is already being treated — which is the honest description of what a retailer can offer here.
| The problem | What helps | Check before buying |
|---|---|---|
| Stopped jumping to the window | Suction window perch, mounted low | Needs clean, smooth, room-temperature glass. Will not hold on textured or filmed windows |
| Struggling into a high-sided bed | Self-warming low-entry bed | Reflects body heat rather than plugging in; the maker does not state foam density |
| Crouching to eat | Raised tilted bowl | Raising the bowl suits stiff necks; the bloat caution attached to raised feeders applies to large dogs, not cats |
| Slipping on hard floors | A non-slip mat or runner | Traction matters more than cushioning here. Not something we sell |
A perch and a low bed together do more than either alone. The perch restores the height your cat gave up; the low bed gives them somewhere to land that does not need climbing into. Cats that lose their high spot and get no replacement usually stop trying rather than adapt.
What we deliberately do not sell: joint supplements. The evidence does not support the prices charged for them, and a cat in pain needs a veterinary plan, not a tub.
Browse the senior comfort range — low beds, perches and easy-reach bowls, with the limits listed on each page.
Sources
- Hardie EM, Roe SC, Martin FR. Radiographic evidence of degenerative joint disease in geriatric cats: 100 cases (1994–1997). Journal of the American Veterinary Medical Association 2002;220(5):628–632. DOI: 10.2460/javma.2002.220.628
- Clarke SP, Mellor D, Clements DN, Gemmill T, Farrell M, Carmichael S, et al. Prevalence of radiographic signs of degenerative joint disease in a hospital population of cats. Veterinary Record 2005;157:793–799. DOI: 10.1136/vr.157.25.793
- Slingerland LI, Hazewinkel HAW, Meij BP, Picavet P, Voorhout G. Cross-sectional study of the prevalence and clinical features of osteoarthritis in 100 cats. The Veterinary Journal 2011;187(3):304–309. DOI: 10.1016/j.tvjl.2009.12.014
- Lascelles BDX. Feline degenerative joint disease. Veterinary Surgery 2010;39(1):2–13. DOI: 10.1111/j.1532-950X.2009.00597.x
- Godfrey DR. Osteoarthritis in cats: a retrospective radiological study. Journal of Small Animal Practice 2005;46(9):425–429. DOI: 10.1111/j.1748-5827.2005.tb00340.x
- US Food and Drug Administration — Osteoarthritis in Cats: More Common Than You Think (animal health literacy)
- Cornell University College of Veterinary Medicine, Feline Health Center — age-related DJD prevalence
- Feline Osteoarthritis Checklist — practice detection data, 1% to 39% with systematic screening
Written by Kindopet Guides. Reviewed 6 September 2026. General guidance, not veterinary advice. If your cat has stopped jumping, book an appointment — this is treatable and worth treating.