Arthritis in Dogs

In dogs, arthritis usually means osteoarthritis, also called degenerative joint disease. It happens when joint cartilage breaks down over time and the joint becomes inflamed and less stable. Veterinary sources note that canine osteoarthritis often develops secondary to an underlying problem rather than simple wear and tear alone.

Common causes and risk factors include:

• Developmental orthopedic disease such as hip dysplasia or elbow dysplasia
• Previous joint injury, including cranial cruciate ligament injury or fracture
• Joint instability or abnormal conformation that changes how weight is carried
• Excess body weight, which increases joint stress and inflammation
• Aging, although dogs of any age can be affected if they have risk factors
• Past joint infection or immune-mediated joint disease
• Large and heavy breeds are commonly affected, and breed predisposition is recognized for conditions that lead to osteoarthritis

Breeds often associated with orthopedic problems that can lead to arthritis include Labrador Retrievers, German Shepherd Dogs, Golden Retrievers, Rottweilers, Newfoundlands, Saint Bernards, and other large or giant breeds.

Your veterinarian will start with a history and physical examination, including watching your dog walk, checking posture, feeling the joints, and looking for pain, stiffness, swelling, reduced range of motion, or muscle loss. Because several conditions can mimic arthritis, diagnosis usually involves confirming joint disease and ruling out other causes of lameness.

What to expect at the appointment:

• Review of when signs started and whether they worsen after rest or exercise
• Orthopedic exam with joint palpation and gait assessment
• Body condition and muscle condition evaluation
• Radiographs (X-rays) to look for joint changes consistent with osteoarthritis
• In some cases, sedation may be needed for proper positioning during imaging
• Additional tests, such as advanced imaging or joint fluid analysis, if another joint disorder is suspected
• Bloodwork may be recommended before starting long-term prescription pain medication or to check for other health issues

Some dogs have significant arthritis visible on X-rays with subtle signs at home, while others show obvious pain with milder imaging changes, so diagnosis relies on the whole clinical picture.

There is no cure for osteoarthritis, but many dogs can be made much more comfortable with long-term management. Current veterinary guidance supports multimodal care, meaning treatment is tailored to the individual dog and usually combines weight management, exercise changes, pain control, and supportive therapies.

Common treatment options include:

• Weight management, which is one of the most important ways to reduce pain and joint stress
• Controlled, regular low-impact exercise rather than weekend overexertion
• Physical rehabilitation, such as guided therapeutic exercise, hydrotherapy, stretching, and other rehab techniques when recommended by your veterinarian
• Prescription pain relief and anti-inflammatory medications chosen by your vet
• Other veterinarian-directed pain-control strategies, which may include additional medications or monthly injectable therapies for some dogs
• Joint-supportive diets or supplements, when your veterinarian feels they are appropriate
• Home modifications such as rugs for traction, ramps, orthopedic bedding, and raised food bowls if helpful
• Warm compresses or other comfort measures as advised by your vet
• Surgery in selected cases, especially when an underlying orthopedic problem is driving the arthritis or when joint replacement or salvage procedures may improve function

Call your vet if your dog's mobility worsens despite treatment, if side effects develop, or if your dog seems suddenly much more painful. Never give human pain medications unless your veterinarian specifically instructs you to do so.