Arthritis in dogs and cats: signs, treatment and everyday care

Are osteoarthritis and degenerative joint disease the same thing?

The terms overlap, but they are not always identical. Osteoarthritis describes degeneration and low-grade inflammation in movable synovial joints, while degenerative joint disease is a broader term that can include other types of joint.

Vets often prefer “degenerative joint disease” when discussing cats because painful degeneration may involve both synovial joints and areas such as the spine. On a pet’s record, the wording therefore depends on which structures are affected and how the condition has been assessed. [1]

Is arthritis just a normal part of getting older?

No. Joint disease becomes more common with age, but persistent pain, stiffness or loss of mobility should not be dismissed as normal ageing.

Gradual changes are easy to overlook when a pet quietly adapts its routine. Earlier recognition gives the veterinary team a chance to investigate the cause and discuss ways to protect comfort, movement and quality of life. [2]

Can a young dog or cat develop osteoarthritis?

Yes. Osteoarthritis and degenerative joint disease are not limited to old pets. Developmental joint problems can start the process early in dogs, and younger cats can also be affected.

The outward signs may remain subtle until later, particularly when a pet changes how it moves instead of showing an obvious limp. Age helps a vet judge possible causes, but it cannot rule joint disease in or out by itself. [1]

Are some dogs more likely to develop osteoarthritis?

Yes. Risk can be influenced by age, breed, body weight, previous joint injury and conditions such as hip dysplasia, elbow dysplasia or cruciate ligament disease.

A risk factor does not mean an individual dog will develop painful arthritis. It helps identify dogs that may benefit from closer attention to growth, body condition, joint health and subtle changes in movement over their lifetime. [6]

What are the signs of osteoarthritis in a dog?

Possible signs include limping, stiffness, difficulty getting up, reduced activity and reluctance to jump, use stairs or get into a car.

Some dogs also alter how they sit, stand or carry their weight. A slow change in enthusiasm, walking pace or willingness to play can be as meaningful as an obvious limp, especially when compared with that dog’s usual routine. [3]

Does stiffness after resting mean my dog has arthritis?

Stiffness when rising can be a sign of joint pain, and osteoarthritis is one possible cause, but stiffness alone cannot confirm the diagnosis.

Injury, spinal disease and other orthopaedic or neurological problems can look similar. Details such as when the stiffness began, which limbs seem affected and whether movement improves or worsens with activity help a vet narrow down the cause.

Visible muscle loss along the spine or back legs is another change to mention to your vet; it can be mistaken for general weight loss. [4]

Does every limp in a dog mean osteoarthritis?

No. Osteoarthritis can cause limping, but injuries and several other joint, bone, paw, muscle or nerve problems can produce a similar change.

A limp that appears suddenly has a different clinical context from a slowly developing mobility change. A veterinary examination is needed to identify the painful area and decide whether imaging or another investigation is useful. [4]

Can osteoarthritis change a dog’s behaviour?

Yes. Chronic joint pain may make a dog quieter, less playful, reluctant to be handled or less willing to do activities it previously enjoyed.

These changes are not specific to arthritis, and some dogs show very little outward reaction. Comparing current behaviour with the dog’s own normal pattern is more useful than expecting every painful dog to whine or cry. [5]

What are the signs of arthritis in a cat?

A cat with painful joint disease may jump less, hesitate on stairs, move stiffly, play less, sleep more or become less comfortable with handling.

Other clues include changes in grooming, hiding, irritability and difficulty using the litter tray. Because cats often alter their routine instead of showing a clear limp, small changes from that cat’s normal behaviour can be important.

Changes in feeding habits, including reluctance to bend down to eat, can also be a sign of pain, particularly when the spine is involved. [7]

Can a cat have arthritis without limping?

Yes. Many cats with painful degenerative joint disease do not show the obvious one-sided limp people commonly associate with arthritis.

Several joints or the same joint on both sides may be affected, making the change look more like general stiffness or reduced activity. Watching how the cat jumps, climbs, grooms and uses the litter tray can reveal more than looking for a limp alone. [7]

Can changes in jumping or climbing be a sign of arthritis in a cat?

Yes. A cat may stop jumping to a favourite place, pause before jumping, choose a lower route or take stairs more slowly when movement has become uncomfortable.

One missed jump is not a diagnosis, but a consistent change from the cat’s usual ability deserves attention. Home videos can help a vet see activities that a nervous cat may not perform during an appointment. [8]

Can arthritis affect a cat’s grooming or temperament?

Yes. Pain or reduced flexibility can make a cat groom less, leave parts of the coat untidy or repeatedly groom an uncomfortable area.

A painful cat may also hide more, seek more reassurance or react irritably when handled. These signs have several possible causes, so they are most useful when considered alongside mobility, appetite, examination findings and the cat’s wider health. [7]

Can arthritis make it harder for a cat to use the litter tray?

Yes. Joint pain can make stepping over a high tray edge, squatting or reaching a distant litter tray more difficult for some cats.

Toileting outside the tray has many other possible medical and environmental causes, including urinary disease and stress. A change in litter habits therefore needs a broad veterinary assessment rather than being assumed to be behavioural or caused by arthritis alone. [7]

How does a vet check for osteoarthritis?

A vet combines the pet’s history with observation of movement, a physical and orthopaedic examination, and imaging when it is likely to add useful information.

The examination may look for altered posture, reduced joint movement, swelling, muscle loss and a pain response. Blood tests, joint-fluid testing or other imaging may sometimes be considered when another disease needs to be ruled out or the picture is unclear. [5]

Are x-rays always needed to diagnose osteoarthritis?

A vet may suspect osteoarthritis from a pet’s history and examination, but x-rays are important for confirming structural joint changes and the overall diagnosis.

Radiographs are especially useful when a case is complex or getting worse, and they can reveal an underlying joint problem. The decision about when to take them depends on the joints involved and what the result would change. [9]

Do x-rays show how much arthritis pain a pet is feeling?

Not reliably. A joint can look markedly changed on an x-ray without being the pet’s main source of pain, while a painful joint may show only modest changes.

Vets therefore interpret imaging alongside behaviour, mobility and examination findings. Treatment and follow-up focus on how the pet functions and feels, not simply on making an x-ray look better. [5]

Can a home video help a vet assess joint pain?

Yes. A clear video can show walking, rising, stairs or jumping that a pet may not repeat in the clinic, where excitement, fear or an unfamiliar floor can change behaviour.

Repeated clips taken in a familiar setting can also make gradual improvement or decline easier to compare. Video supports the history and examination; it does not identify the cause of pain by itself.

This can be particularly useful for cats whose usual movement is difficult to observe in the clinic. A home video does not replace a physical examination. [5]

Why might a vet use an arthritis questionnaire?

An owner-completed questionnaire records changes in pain, mobility and everyday activities in a consistent way, making patterns easier to follow over time.

Dogs and cats have different validated tools, and some focus on activities chosen for the individual pet. A score adds structure to the assessment but still needs interpretation alongside the examination, home observations and any relevant tests. [5]

Can osteoarthritis in a dog or cat be cured?

The joint changes are usually managed as a long-term condition rather than reversed, but pain, mobility and quality of life can often be improved.

The realistic goal is comfortable participation in daily life, not a promise that every sign or structural change will disappear. In selected dogs, surgery for an underlying joint problem may change the outlook, so “incurable” does not mean that nothing useful can be done. [10]

How is osteoarthritis usually managed in pets?

Management is usually individual and multimodal, meaning the veterinary plan may combine pain relief with weight management, suitable movement, rehabilitation and changes to the home.

The useful combination depends on species, disease stage, other health conditions and what the pet and household can manage consistently. Reassessment matters because the balance may need to change as comfort, function or health changes. [11]

Can body weight affect a pet with osteoarthritis?

Yes. Excess body fat can increase the mechanical load on joints and is also biologically active, contributing to inflammatory processes linked with osteoarthritis and pain.

Weight management is not appropriate in the same way for every pet, particularly when muscle loss or another illness is present. Vets consider body condition and muscle condition separately before deciding whether weight loss, maintenance or nutritional support belongs in the plan. [12]

Is exercise still important for a pet with arthritis?

Usually, yes. Appropriate movement helps preserve muscle, joint function, confidence and general health, while the amount and type need to match the pet’s comfort and ability.

Too little movement can contribute to weakness, but an unsuitable burst of activity may aggravate symptoms. A veterinary or rehabilitation plan can favour regular, controlled activity and adjust it when pain, fatigue or mobility changes. [12]

What can rehabilitation do for a pet with osteoarthritis?

Veterinary rehabilitation can target strength, balance, joint movement and comfortable everyday function with an exercise plan tailored to the individual pet.

It may include supervised exercises, home exercises and selected hands-on or equipment-based techniques. The evidence is stronger for some approaches than others, so goals, progress and the pet’s response need to guide what remains in the plan. [12]

What home changes can help a dog with arthritis move more comfortably?

Secure footing, a supportive resting place and easier routes to important areas can reduce avoidable slips, jumps and difficult steps for an arthritic dog.

Useful changes depend on where the dog struggles: examples include carpet runners on smooth floors or a stable ramp where a jump is no longer comfortable. Home adaptations support mobility, but they do not replace assessment and pain management. [12]

What home changes can help a cat with painful joints?

A cat with painful joints may benefit from easier access to resting places, food, water and litter trays, together with stable surfaces and lower steps between favourite levels.

The best arrangement preserves normal feline choices rather than confining the cat unnecessarily. A low-entry tray, nearby resources and a staged route to a window ledge can reduce difficult movements while still allowing control, play and retreat. [13]

What medicines might a vet consider for osteoarthritis pain?

Veterinary-prescribed pain medicines can be an important part of osteoarthritis care, but the suitable options differ between dogs and cats and between individual patients.

The choice depends on the pet’s health, other medicines, likely benefits, potential adverse effects and the products authorised in that country. Human painkillers are not interchangeable with veterinary medicines and can be dangerous, especially for cats. [7]

Do joint supplements work for dogs and cats with arthritis?

Evidence varies widely between ingredients, species, formulations and products, so a “joint support” label does not show that a supplement will improve pain or mobility.

Some nutritional approaches have better evidence than others, particularly omega-3 fatty acids in dogs, but supplements can still add calories, cost or interact with the wider plan. Product-specific evidence matters more than a broad ingredient claim. [12]

Is surgery ever used for osteoarthritis in dogs?

Sometimes. Surgery may be considered when a correctable underlying joint problem, severe structural damage or pain that is not adequately controlled makes an operation a reasonable option for a dog.

The possible procedure and likely benefit depend on the joint, the cause, disease stage and the dog’s overall health. Many dogs are managed without surgery, while selected cases may benefit from an orthopaedic assessment or referral. [3]

How can I tell whether an arthritis plan is helping my pet?

Improvement is usually judged through everyday function: easier rising, walking, stairs, jumping, grooming, play, sleep and willingness to interact may all be relevant.

Agreeing a few activities that matter to that individual pet makes change easier to recognise. Notes, questionnaires and comparable home videos can help the veterinary team distinguish a real trend from a single unusually good or difficult day.

Ask your veterinary team which owner questionnaire to use and complete it consistently. This gives you an active role in tracking your pet's comfort and provides a structured record for the clinical team. [8]

Why are regular veterinary rechecks important for osteoarthritis?

Osteoarthritis, pain and a pet’s wider health can change over time, so a plan that worked initially may later need adjustment.

Rechecks allow the veterinary team to reassess comfort and function, look for adverse effects, review body and muscle condition, and update medicines, exercise or home support. New or rapidly worsening mobility problems also need reassessment rather than being assumed to be expected arthritis. [14]