Osteoarthritis in Cats: Signs, Causes, and Care Options

Joint degeneration is far more widespread in cats than most owners expect, and it often goes unrecognized until a cat's movement has clearly changed. Cats are skilled at hiding discomfort, so the disease can progress quietly for a long time. Knowing what to look for at home is what makes an early conversation with your veterinarian possible.

What Osteoarthritis Does to a Cat's Joints

Osteoarthritis, usually shortened to OA, is a progressive degenerative joint disease. The cartilage that caps the ends of the bones gradually breaks down, and as that protective layer thins, the bone surfaces begin to make contact with one another.

That contact brings inflammation, pain, and less freedom of movement. In cats, the hip, elbow, and stifle are among the joints most often involved. Feline OA tends to build slowly, either after years of ordinary activity, following an old injury, or as a consequence of a developmental problem in the joint.

Quiet Signs You May Notice at Home

Dramatic limping is uncommon in the early stages. Shifts in behavior usually come first.

• Less willingness to jump up onto furniture
• Pausing or hesitating before using the stairs
• Sleeping more, and choosing lower places to rest
• Irritability when touched near a sore joint
• Less grooming, especially along the back and hindquarters

It is easy to file these changes away as normal aging. They can just as easily point to ongoing joint pain, which is why having your cat examined early makes a real difference.

What Raises the Risk, and How the Diagnosis Is Made

Any cat can develop OA, but several things make it more likely.

• Age, since cartilage wear and degeneration accumulate over the years
• Previous injury, including fractures, ligament damage, and dislocations; cats with cruciate ligament injuries sometimes benefit from a surgical repair such as lateral suture stabilization, which helps restore stability and function
• Excess body weight, which adds mechanical stress to every joint
• Genetics, with breeds such as Maine Coons, Scottish Folds, and Persians reported to have higher rates
• Hip dysplasia, which is less common in cats than in dogs but can contribute and, in some cases, may call for FHO surgery

Reaching a diagnosis takes both a hands-on exam and imaging. Your veterinarian will palpate the joints for stiffness, swelling, and pain responses, and will watch how your cat stands and moves, since posture and gait often reveal what a cat is trying to hide. Radiographs remain the gold standard for seeing narrowed joint spaces, new bone spurs, and remodeling. When a case is complicated, advanced imaging such as CT or MRI may be suggested to look at the soft tissues.

Treatment, Diet, and Pain Control

Modern management usually combines several approaches rather than relying on any single one. Options your veterinarian may discuss include:

• NSAIDs formulated specifically for cats, to bring down pain and inflammation
• Disease-modifying osteoarthritis drugs such as Adequan, which help slow cartilage loss
• Joint injections in selected cases, using corticosteroids or regenerative therapies aimed directly at inflammation
• Structured physical rehabilitation to keep muscle tone and mobility without overloading a painful joint

Nutrition carries real weight here. Joint diets recommended by veterinarians may supply omega-3 fatty acids such as EPA and DHA to calm joint inflammation, glucosamine and chondroitin sulfate to support cartilage, green-lipped mussel extract for its anti-inflammatory effect, and controlled calories to help hold a healthy weight. Add supplements only with your veterinarian's guidance, because some products made for people are toxic to cats.

Everyday Changes and Long-Term Care

Small adjustments at home let a cat keep her independence while sparing sore joints. Sturdy ramps or steps make favorite perches reachable. A litter box with low sides is easier to step into and out of. Soft, supportive bedding in a warm spot helps, and keeping food and water within easy reach removes unnecessary climbing.

OA is a lifelong condition, but many cats stay active and comfortable for years. That depends on regular check-ups, periodic reassessment of how well pain control is working, and honest back-and-forth between you and your veterinarian.

• Adjusting medications based on how your cat responds and tolerates them
• Keeping body weight in a healthy range
• Continuing gentle, low-impact play to preserve muscle
• Using ramps, steps, and bedding aids consistently rather than occasionally
• Referral for advanced care such as joint injections, acupuncture, shockwave, or surgery when it is indicated

If you are seeing stiffness or a drop in your cat's usual activity, bring it up with your veterinarian. They know your cat's history and can tell you which of these steps make sense for her.