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Osteoarthritis in Dogs: Symptoms, Causes, Treatment & Prevention

Written by Vet Nurse

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Posted on April 19 2026

Have you noticed your dog slowing down lately or perhaps hesitating to climb the stairs after a morning walk? It is incredibly common for Aussie pet parents to think their dog is simply reaching those senior years, but these subtle changes often signal the early stages of osteoarthritis in dogs.

This condition is a chronic and degenerative joint disease that impacts a pup's mobility and overall comfort, yet it is highly manageable if you catch it early. Right across Australia, statistics show that up to 80% of dogs over the age of eight experience some form of arthritis, making it one of the most frequent health hurdles our mates face. By getting a handle on the signs of osteoarthritis in dogs and what causes osteoarthritis in dogs, you can help your dog maintain a great quality of life through a mix of veterinary care, lifestyle tweaks and proactive pet supplements.


What Is Osteoarthritis in Dogs?

Canine osteoarthritis is a chronic condition where the protective cartilage that cushions the joints starts to wear away. This leads to a cycle of pain and inflammation as the bones eventually begin to rub together without that necessary padding. While the condition progressively deteriorates over time, it is important to remember that this is not just an inevitable part of getting old.

There are two primary ways this develops. Primary osteoarthritis is usually linked to the standard wear and tear of a long and active life. Secondary osteoarthritis can be triggered by things like old injuries, hip dysplasia or other joint abnormalities that have been present since puppyhood. A common misconception is that a dog will always whine if they are in pain, but because OA is a slow burner, many dogs simply adapt by moving less, which owners often mistake for a normal loss of energy.

 

A diagram comparing a healthy dog joint with an arthritic dog joint, showing the breakdown of cartilage, bone spurs, and joint capsule inflammation.

Understanding the difference: A healthy joint (left) allows for smooth, pain-free movement, while an arthritic joint (right) suffers from cartilage loss and bone-on-bone friction.

 

Early Signs and Symptoms of Osteoarthritis in Dogs

Spotting the signs of osteoarthritis in dogs early is vital for effective pain management. Many physical and behavioural changes are quite easy to miss because they tend to develop at a snail's pace. In fact, Australian studies suggest that up to 40% of dogs with arthritis remain undiagnosed because their owners assume the slowing down is just a part of senior life.


Physical Signs to Watch For

  • Limping or Lameness: You might notice a slight favouring of one affected limb, especially after your dog has been resting on a cool morning. This often looks like a bit of a hitch in their gait that seems to fade once they have moved around for a few minutes.

  • Stiffness and Slow Starts: This usually shows up as difficulty rising from their bed or a slow, stiff gait when they first get moving in the morning. According to Cornell University, identifying these early mobility changes is the first step in successfully managing chronic pain and osteoarthritis in pets.

  • Mobility Struggles: You may see them hesitating when jumping into the back of the car or climbing the front porch stairs, which indicates a decrease in their usual range of motion.

  • Muscle Wasting: If you look closely at their hind legs, you might see a visible loss of muscle mass as they subconsciously shift their weight forward to avoid putting pressure on sore hips.


Behavioural Changes

  • Reluctance to Play: A sudden lack of interest in their favourite squeaky toy or a shorter attention span for fetch can be a major red flag.

  • Licking and Chewing Joints: Constant grooming or licking of a specific area is often a dog's way of trying to relieve pain from a deep ache.

  • Irritability or Grumpiness: Your usually easygoing mate might start snapping or whining when they are touched near their hips. Pain can make even the loveliest dog a bit short-tempered.

  • Lethargy and Disinterest: Spending more time sleeping and showing less enthusiasm for the daily routine is often a sign of chronic fatigue.

 

An illustration of different early signs and symptoms of osteoarthritis in dogs including mobility struggles and limping.

 

Common Causes and Risk Factors

Understanding what causes osteoarthritis in dogs is the first step toward helping your mate stay mobile. While some factors are just a part of getting older, others can be managed with a bit of extra care at home.


Risk Factor How it Affects Your Dog
Age As dogs get older, their bodies naturally find it harder to repair cartilage, leading to gradual wear and tear.
Breed Predisposition

Larger breeds like Labradors, German Shepherds and Golden Retrievers are naturally more prone to joint issues.

Joint Abnormalities Conditions like hip dysplasia or luxating patellas cause joints to move unevenly, creating friction over time.
Obesity Carrying extra weight puts constant, unnecessary stress on a dog's joints and significantly increases inflammation.
Previous Injuries Past accidents, such as a cruciate ligament tear or a broken bone, often lead to arthritis in that limb later in life.
Lifestyle Factors Both over-exercising a young puppy and prolonged inactivity in adult dogs can negatively impact their long-term joint health.

 

How Vets Diagnose Osteoarthritis

If you suspect your dog is in a bit of strife, it is important to seek a professional diagnosis. You should never self-diagnose your pet, as many other conditions can mimic arthritis.

 

What to Expect During a Vet Visit

A diagnostic appointment typically involves a thorough history-taking where you discuss symptoms and behaviour changes. The vet will then perform a physical examination, including joint manipulation to check for a pain relief response and assess muscle symmetry.


Diagnostic Imaging and Tests

To confirm the extent of the joint disease, your vet may use imaging such as X-rays or, occasionally, a CT or MRI scan. Before starting any long-term medication, bloodwork is usually needed to ensure your dog is healthy enough to process the treatment safely.


Veterinary Treatment Options

Knowing how to treat osteoarthritis in dogs requires a team effort between you and your vet to focus on reducing pain and improving mobility.


Medications

Vets often prescribe non-steroidal anti-inflammatory drugs like carprofen, meloxicam or grapiprant to manage pain and inflammation. Other pain modifiers like gabapentin or amantadine may be used, while steroids are less common due to their potential side effects.


Modern Injectables

Australian pet parents have access to some brilliant medical advancements, like pentosan polysulfate injections, which help to lubricate stiff joints and protect cartilage. Research highlights the role of pentosan polysulfate injections in slowing cartilage breakdown. There are also innovative monthly treatments, such as Beransa, that specifically target nerve growth factor to provide consistent relief. These veterinary options are often the key to helping a dog get back to their happy, active self.

 

Surgical Options

In severe cases, a vet might discuss surgical options like a total hip replacement or arthroscopy to remove fragments within the joint. These are often considered when other treatments no longer provide a sufficient quality of life.

 

At-Home and Natural Support Strategies

What you do at home is just as important as medical treatment for pain management.


Weight and Exercise

Every extra kilo increases strain on joints, so keeping your dog lean is vital. Opt for controlled, low-impact exercise like swimming, hydrotherapy or steady leash walks. You should avoid high-impact activities like ball throwing or excessive jumping.


Environmental Adjustments

  • Provide Better Traction: Use anti-slip mats on tile floors to prevent jarring slips.
  • Use Ramps and Steps: Provide ramps for cars and sofas to reduce impact.
  • Invest in a Quality Bed: Use orthopaedic or memory foam beds for better support.
  • Elevate Their Bowls: Raising food bowls makes mealtime more comfortable.

 



Joint Supplements

Integrating a high-quality canine joint supplement into your dog’s daily routine can provide the essential building blocks needed for better joint health. Petz Park Hip & Joint powder is an Australian-made, vet-formulated option designed to support dogs through every stage of life. 

The formulation focuses on high concentrations of glucosamine and chondroitin, which are the vital structural components of healthy cartilage. Glucosamine supports the repair of damaged tissues, while chondroitin helps the cartilage retain moisture and elasticity. Together, these ingredients help to ensure that the joints remain as cushioned as possible as the condition progressively deteriorates.

In addition to these building blocks, the supplement includes Methylsulfonylmethane, commonly known as MSM. This powerful compound is included to help manage the natural inflammatory response and relieve pain without the risk of common medicinal side effects. MSM is particularly helpful for maintaining the flexibility of the connective tissues surrounding the affected limb, making it easier for your dog to move comfortably.


Preventing Osteoarthritis in Dogs

You do not have to wait for symptoms to appear before taking action. Early intervention always leads to a better long-term outcome for your dog.

  • Introduce Supplements Early: It is a great idea to start supplements for dog  based on your pup's unique lifestyle. For big breeds like Labradors or Shepherds, starting as early as one year old can help offset genetic risks. If your dog is a little athlete who loves high-energy sports, they might benefit from support between the ages of 2 and 4.  

  • Senior Support: Most senior dogs from age seven onwards will benefit from daily joint care regardless of their current activity level.

  • Puppy Nutrition: Feed large breed puppies an appropriate growth diet to ensure their joints develop at a steady, healthy rate.

  • Manage the Environment: Avoid slippery floors and excessive jumping in growing dogs to protect their developing plates.

  • Regular Activity: Encourage moderate, daily activity rather than occasional intense exercise.

  • Routine Vet Checks: Schedule regular check-ups for joint monitoring to catch any subtle changes early.

Key Takeaways

  • Osteoarthritis is incredibly common but highly manageable with the right proactive support.
  • Early signs of the condition can be subtle, so staying vigilant is critical for your dog's comfort.
  • The most effective approach combines veterinary care, lifestyle adjustments and consistent supplementation.

Support your dog's joints with daily care. Explore Petz Park's Hip & Joint Supplement, Aussie-made, easy-to-use and vet-formulated.

 

Frequently Asked Questions

Can osteoarthritis in dogs be cured?

While it cannot be cured completely, it can be managed very well so your dog can live a long and happy life.

 

How do I know if my dog is in pain?

Look for subtle changes like taking longer to get up in the morning or being less keen on their walks.

 

Are joint supplements safe to use with other medications?

Natural supplements are generally very safe to use alongside vet treatments, but always have a quick chat with your vet first.


References