Dog Arthritis: Symptoms, Causes & Treatment

Arthritis is one of the most common causes of pain in dogs, and because they instinctively hide discomfort, it often creeps up unnoticed. The good news is that once you know what to look for, arthritis is very manageable. Here's how to spot the early signs, what causes joint disease, how vets diagnose it, and the treatment and lifestyle changes that keep dogs comfortable and moving.

Signs and symptoms of arthritis in dogs

Arthritis (most commonly osteoarthritis) develops slowly, so the earliest signs are easy to write off as "just getting older." Watch for these changes:

• Stiffness, especially after resting or first thing in the morning
• Reluctance to jump onto the sofa, climb stairs, or get in the car
• Slowing down on walks, lagging behind, or tiring more quickly
• A stiff, "bunny-hopping" gait or an obvious limp
• Licking or chewing at a particular joint
• Muscle loss over the hips or hindquarters
• Behaviour changes — irritability, less interest in play, or reluctance to be touched

Symptoms often look worse in cold or damp weather and after a big burst of activity. If you notice several of these together, it's worth acting early rather than waiting.

What causes arthritis in dogs?

Arthritis happens when the smooth cartilage cushioning a joint wears down, letting bones rub together and triggering inflammation and pain. Several factors drive this:

• Age and wear-and-tear — cartilage naturally degrades over years of use.
• Developmental conditions such as hip dysplasia or elbow dysplasia, which put abnormal stress on joints from a young age.
• Previous injury — a torn ligament, fracture or joint trauma often leads to arthritis later in life.
• Excess weight, which loads every joint and fuels inflammation.
• Breed and size — large and giant breeds are especially prone.

How arthritis is diagnosed

Your vet will start with a physical exam, gently flexing and extending each joint to check for pain, swelling, reduced range of motion and grinding. They'll watch your dog walk and may ask about the changes you've noticed at home, so keeping notes really helps. X-rays are the most common next step, revealing narrowed joint spaces, bony changes and other hallmarks of arthritis. In some cases blood tests or joint fluid analysis are used to rule out infection or other joint diseases.

Treatment and management

There's no cure for arthritis, but a layered approach keeps most dogs comfortable and active. The best plans combine several of the following:

• Weight management — the single most powerful thing you can do. Even a small amount of weight loss dramatically reduces joint load.
• Pain relief — vets often prescribe anti-inflammatory medication to control pain and inflammation. Never give human painkillers, which can be toxic to dogs.
• Joint supplements — omega-3s and joint-support formulas may help some dogs; ask your vet what's appropriate.
• Controlled exercise — regular, gentle, low-impact activity keeps joints mobile and muscles strong. Short frequent walks beat one long one.
• Physiotherapy and hydrotherapy — swimming and underwater treadmills build muscle without pounding the joints.
• Home comfort — a supportive orthopedic dog bed takes pressure off sore joints, while ramps and raised feeders reduce the strain of climbing and bending.

Can you prevent arthritis?

You can't stop every case, but you can lower the risk and slow it down. Keep your dog lean from puppyhood onward — excess weight is the biggest modifiable risk factor. Provide regular, moderate exercise to keep muscles strong and joints lubricated, and avoid over-exercising growing puppies of large breeds, whose joints are still developing. Non-slip flooring, ramps instead of jumping, and prompt treatment of any joint injury all help protect cartilage over the long term.

When to see a vet

Book a check-up if your dog shows persistent stiffness, limping, or reluctance to move, or if you notice a sudden change in mobility. Early diagnosis means treatment can start before the joint deteriorates further. See a vet promptly if a limp appears suddenly and severely, if a joint is hot or swollen, or if your dog is clearly in significant pain — these can signal an acute injury or infection rather than gradual arthritis.

Frequently asked questions

At what age do dogs get arthritis?

Arthritis is most common in senior dogs from around 7 or 8 years old, but it can appear much earlier. Large breeds, dogs with joint conditions like hip dysplasia, and dogs who have had a joint injury can develop arthritis in middle age or even as young adults, so early signs are worth watching for at any age.

Can dog arthritis be cured?

Arthritis cannot be cured because the cartilage damage is permanent, but it can be managed very effectively. A combination of weight control, appropriate exercise, pain relief, joint supplements and home adjustments can keep most dogs comfortable and active for years. The goal is to slow progression and reduce pain rather than reverse the disease.

How can I make my arthritic dog more comfortable at home?

Provide a supportive orthopedic bed, keep your dog at a healthy weight, add ramps or steps to avoid jumping, use non-slip mats on slippery floors, and raise food and water bowls to reduce neck and joint strain. Gentle daily walks and keeping your dog warm also help. Always follow your vet's plan for any pain medication.

This guide is educational and not a substitute for professional veterinary care. If you're worried about your dog, contact your vet.