Arthritis affects 90% of cats over 12 — and most owners never know. Cats hide pain better than any other pet. They don't limp or whine. They just stop jumping, sleep more, and slowly withdraw. By the time you notice, the joint damage is already significant. Treatment runs $30-$100/month for life, but the real cost is the years of silent suffering before diagnosis.
Degenerative joint disease — cartilage in the joints breaks down over time, causing bone-on-bone friction and inflammation. Age is the biggest factor: 90% of cats over 12 have radiographic evidence of arthritis. Previous injuries, obesity, and joint abnormalities accelerate the process. Unlike dogs, cats rarely show obvious lameness, making it the most underdiagnosed condition in feline medicine. The most underdiagnosed condition in cats
Reduced jumping — using steps or furniture to reach favorite spots. Hesitation before jumping up or down. Sleeping more and playing less. Stiffness after resting, especially in cold weather. Difficulty getting in and out of the litter box. Decreased grooming leading to a matted or unkempt coat. Irritability when touched in certain areas. These changes happen gradually over months or years. Cats hide pain — look for behavior changes, not limping
Physical exam reveals decreased range of motion, joint thickening, and pain on manipulation. X-rays ($200-$400) confirm the diagnosis and show joint space narrowing, bone spurs, and cartilage loss. Many vets miss arthritis because cats tense up during exams, masking joint pain. Sedated X-rays may be needed for accurate assessment. Average $200-$400
Solensia (frunevetmab) — a monthly injection specifically for cat arthritis pain, $50-$100/month. Meloxicam or robenacoxib for pain and inflammation, $15-$40/month. Joint supplements with glucosamine/chondroitin, $15-$30/month. Weight management is critical. Environmental modifications — ramps, low-entry litter boxes, heated beds. Laser therapy or acupuncture as adjuncts. Average $30-$100/month ongoing
Diagnosis plus ongoing pain management, supplements, and periodic vet checks. Solensia alone runs $600-$1,200/year. $500-$1,500 annually depending on treatment approach.
Maine Coon, Persian, Scottish Fold, and Siamese have higher rates. Scottish Folds are especially prone due to cartilage abnormalities. But any senior cat is at risk — it's nearly universal.
Arthritis is progressive and irreversible. The goal is pain control and quality of life, not cure. Early intervention slows progression and keeps cats comfortable longer.
Keep your cat lean — every extra pound stresses joints. Stay active with gentle play. Annual senior screening after age 7 catches it early.
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Diagnosis plus ongoing pain management, supplements, and periodic vet checks.
Most policies cover arthritis diagnosis and treatment if your cat is enrolled before symptoms appear. The standard 14-day illness waiting period applies. Vet visits, X-rays, Solensia injections, pain medications, and follow-up visits are typically covered. The newer Solensia treatment is covered by most major insurers.
Since 90% of cats over 12 have arthritis, insuring a senior cat is nearly impossible without it being pre-existing. The key is enrolling your cat young — ideally as a kitten or young adult — years before arthritis develops. If you wait until your cat is showing signs of slowing down, it's too late for arthritis coverage.
At $500-$1,500/year, ongoing arthritis treatment easily exceeds annual deductibles. Solensia alone runs $600-$1,200/year. Over a cat's remaining lifespan after diagnosis (often 5+ years), total arthritis costs can reach $5,000-$10,000. This is one condition where insurance delivers significant long-term value.
Many policies exclude supplements and nutraceuticals from coverage. Joint supplements like glucosamine/chondroitin ($15-$30/month) are a core part of arthritis management but often aren't covered. Prescription medications and Solensia injections are covered, but over-the-counter supplements usually aren't.
🇺🇸 US Pet Insurance Guide
Our guide shows exactly what to check in the fine print — before your first claim gets denied.
Insurance GuideBreeds Most Affected by Arthritis
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My mother-in-law took her German boxer to the veterinary emergency room — $1,200 in tests, no answers. A different vet solved it in minutes with $8 pills.
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