Why Does My Cat Always Lie Down? Understanding Feline Arthritis

1 What Is Feline Arthritis?

Feline arthritis is divided into primary arthritis, rheumatoid arthritis, and secondary arthritis. Most cats develop secondary arthritis, also called degenerative arthritis.

Degenerative arthritis is a broad term covering degenerative spinal disease of non-synovial joints, isolated degenerative lesions such as soft-tissue calcification within a joint, and traumatic arthritis.

The most common form comes from degeneration of joint cartilage. In a healthy joint, a gap between the two bones is cushioned by synovial fluid and a cartilage layer that provide lubrication and shock absorption, letting the joint bend freely.

With age, the cartilage is lost, degenerates, and wears away, synovial lubrication declines, and inflammation and discomfort follow—causing pain and difficulty walking. Ongoing joint damage also triggers secondary changes in surrounding tissue, which is why older cats are at very high risk.

Beyond cartilage-degeneration arthritis, there is also arthritis caused by new bone forming on the joint surface and edges—simply put, bone overgrowth (osteophytes).

Where does arthritis occur? Commonly in the legs, hips, and spine—more specifically the shoulder, hip, and elbow joints.

2 Signs Your Cat May Have Arthritis

Cats have a strong tolerance for pain and hide their suffering well, so owners often miss it. If a cat has arthritis, you may notice the following:

1. Limited movement: reluctance to jump, long hesitation before jumping, or even refusal; lower jump height. In severe cases the legs stiffen and obvious lameness appears after sleeping or resting, with slow walking.

2. Reduced activity: the cat plays less, lies or rests more, moves around less, and sleeps more.

3. Less grooming: grooming requires folding the body, and arthritis pain changes the habit—lower frequency and smaller grooming movements.

4. Personality changes: dislike of being picked up or petted, greater irritability, preference for solitude, and less interaction with people or other cats.

3 Causes of Arthritis

1. Aging: like humans, the body degenerates with age. Studies show that past age 12, nearly 70% of cats deal with arthritis, because older cats have more severe cartilage wear.

We may think the cat is simply less agile and no longer jumping around, but in reality it may be enduring chronic joint pain.

2. Genetics: some cats are born with higher risk—Maine Coons, Persians, and Siamese are prone to hip dysplasia; Abyssinians and Devon Rex to patellar luxation; Scottish Folds to chondrodysplasia.

3. Obesity: an overweight cat causes many problems, including arthritis. As the cat gets heavier, each joint bears more weight and pressure, raising arthritis risk and speeding deterioration.

4. Trauma: past injuries such as fractures, dislocations, and other joint damage can cause abnormal joint conformation, leading to secondary osteoarthritis.

5. Acromegaly: affected cats secrete excess growth hormone. They often develop diabetes, and some show secondary arthritis in the joints.

4 Treatment and Prevention

1. Medication: drugs effectively control arthritis pain and inflammation but must be used only under direct veterinary supervision because all have side effects. The most common class is NSAIDs. In cats use the lowest precise dose; meloxicam at 0.02 mg/kg PO q24h is typical, or follow the product label. If an NSAID is inappropriate or insufficient, alternative or add-on analgesics may be needed—buprenorphine, amantadine, tramadol, or gabapentin. All must be used only under your vet’s supervision.

2. Diet: obesity or overweight worsens arthritis, so weight loss is the top priority—avoid high-calorie, high-protein foods. Supplement anti-inflammatory essential fatty acids (omega-3 EFAs) and glycosaminoglycans such as glucosamine and chondroitin.

3. Environmental management: adjust the surroundings to maintain a good quality of life. For example, add steps or ramps so the cat reaches favorite spots without jumping, and make sure food, water, and litter are easy to reach without jumping. Provide a soft, comfortable, dry bed—cold, damp environments worsen discomfort. Brush the coat often and trim nails regularly, since self-cleaning and scratching are hard and painful for an arthritic cat.

4. Prevention: supplement calcium appropriately during kittenhood and choose quality cat food. Most important, do not overfeed for cuteness—obesity is a silent killer for cats.

Arthritis treatment is tedious and lengthy, requiring long-term patient care. Watch your cat’s behavior and body for changes at all times, especially as it grows old, so that our furry friends stay well.