Osteoarthritis in Senior Dogs: Why Subtle Mobility Changes Deserve Attention
Is your older dog moving more slowly or taking extra time to walk up the stairs? Osteoarthritis, a common joint disease, could be to blame. Arthritis symptoms aren't obvious at first and may be confused with natural age-related changes. Identifying subtle changes in your dog's movements or behavior will help you ensure your pet receives appropriate treatment for the disease.
What Is Osteoarthritis?
Osteoarthritis affects the layer of cartilage that covers the ends of bones in the hips, elbows, and other joints. Cartilage helps joints move smoothly and painlessly. Injuries or years of wear-and-tear cause joint cartilage to degenerate. When this happens, every movement becomes painful as the bones in the joint rub together.
About 80% of dogs 8 years old and older have osteoarthritis, according to the University of Illinois Urbana-Champaign College of Veterinary Medicine. Large breeds and overweight dogs may develop arthritis even earlier.
How Does Osteoarthritis Affect Dogs?
Initially, changes due to arthritis seem minor. Instead of dashing to the food dish every morning, your dog may slowly stroll into the kitchen instead. A pet that enjoyed sitting next to you on the couch may find curling up in its dog bed preferable to jumping on the couch.
Other subtle signs that could mean your senior dog has osteoarthritis include:
Twitching Muscle
Arched Back
Disinterest in Playing or Going on Long Walks
Taking Longer to Stand When Lying Down or Sitting
Irritability
Sleeping More Than Usual
Favoring One Side of the Body
Change in Posture When Sitting or Lying Down
Weight Gain Due to Decreased Activity
Holding One Leg Straight When Sitting
Difficulty Finding a Comfortable Position
Muscle Loss in Hind Legs
Gait Changes
Shifting Weight from One Leg to the Other
Stiff Movements
Licking or Chewing the Area Around a Joint
Limping
Why Is It Important to Monitor Your Senior Dog for Signs of Osteoarthritis?
It's easy to dismiss early osteoarthritis signs as just a natural part of aging. However, your dog may suffer needlessly if you ignore these changes. Osteoarthritis is a progressive disease with increasing pain and mobility issues as time goes on.
Minor changes, like favoring one side of the body or gaining a few pounds, might not seem like a good reason to schedule an appointment with the veterinarian. However, weight gain increases pressure on arthritic joints, while posture changes place extra pressure on healthier joints and could eventually damage them.
Although osteoarthritis can't be cured or reversed, treatments make your pet more comfortable and slow the progression of the disease. Without treatment, your pet may struggle to walk eventually. The earlier the disease is diagnosed, the better the treatment outcome.
How Do Veterinarians Treat Osteoarthritis in Senior Dogs?
If your dog is diagnosed with osteoarthritis, your veterinarian may recommend one or more of these treatment options and approaches:
Pain Medication. Prescription medications decrease pain, stiffness, and inflammation in joints.
Supplements. Glucosamine, omega-3 fatty acids, chondroitin, and other supplements may reduce arthritis pain. Discuss dosage guidelines with your veterinarian before giving your pet supplements.
Weight Management. Keeping your pet at a healthy weight eases pressure on your senior dog's joints. Fat also increases inflammation, according to the American College of Veterinary Surgeons. If your pet is overweight, your veterinarian can recommend weight loss strategies.
Dietary Changes. Switching to prescription diets formulated especially for osteoarthritis can help ease your pet's symptoms.
Physical Therapy. Short walks and swimming help your dog stay active without stressing the joints. Heat and cold may also be helpful, as long as you use these therapies for short periods of time. Your dog might also enjoy gentle massages if the joint isn't too painful.
Environmental Adjustments. Upgrading your dog's bed to a softer, more supportive model reduces pressure on arthritic joints. Adding a ramp next to your couch or bed makes it easier for your dog to spend time with you if managing stairs is a problem.
Other Treatments. If these strategies and treatments aren't helpful, your veterinarian can discuss other options with you, such as intra-articular joint injections to relieve pain and promote healing.
Contact our office if these osteoarthritis signs sound familiar. Early treatment of osteoarthritis is the key to your senior dogs' health and happiness.
Sources:
JAVMA News: Getting Ahead of Osteoarthritis in Pets, 1/1/2021
https://www.avma.org/javma-news/2021-01-01/getting-ahead-osteoarthritis-pets
American College of Veterinary Surgeons: Osteoarthritis in Dogs
https://www.acvs.org/small-animal/osteoarthritis-in-dogs/
University of Illinois Urbana-Champaign College of Veterinary Medicine: Osteoarthritis: Management Options, 10/27/2025
https://vetmed.illinois.edu/2025/10/27/osteoarthritis-management-options/
Cornell University College of Veterinary Medicine: Osteoarthritis
