Dog arthritis: what it is and the early signs to watch for

Has your dog started slowing down, hesitating before jumping onto the couch, or taking a little longer to stand up after a nap? These changes could be a natural part of aging — but are also common symptoms of arthritis.

Arthritis in dogs typically develops gradually, and the early signs can be easy to miss. Because dogs are good at hiding pain, subtle changes in their behavior are often the first clue that something isn't right.

Recognizing arthritis early can help your dog stay comfortable and active for longer. In this guide, we'll explain what arthritis is, how to spot it, and when it's time to talk to a veterinarian.

What is arthritis in dogs?

Arthritis is a condition that causes inflammation inside the joints. Over time, the protective cartilage that cushions the ends of the bones begins to wear away. Without it, the bones rub against each other, leading to pain, stiffness, and reduced mobility.

The most common type is osteoarthritis, also called degenerative joint disease. It's especially common in older dogs, but younger dogs can develop arthritis, too — particularly after a joint injury or because of inherited orthopedic conditions like hip or elbow dysplasia.

Unlike a sudden injury, arthritis usually develops slowly. You may notice small changes in your dog's movement or behavior weeks or even months before they begin limping.

Is arthritis just part of getting older?

It's true that arthritis becomes more common as dogs age, but pain is never considered a normal part of aging.

Many pet parents assume their senior dog is simply "slowing down," when in reality, they're avoiding activities that have become uncomfortable. Catching arthritis early gives your veterinarian more opportunities to help manage pain and keep your dog moving comfortably.

What are the early signs of arthritis in dogs?

The signs of arthritis in dogs often appear gradually. Instead of suddenly refusing to walk, your dog may simply start making small adjustments to avoid discomfort.

These changes can be subtle at first, making them easy to dismiss. But when several signs begin appearing together, an arthritis diagnosis becomes much more likely.

Some of the most common dog arthritis symptoms include:

• Stiffness after resting or sleeping  

• Limping that improves after walking  

• Walking more slowly than usual  

• Reluctance to climb stairs  

• Hesitating before jumping into the car or onto furniture  

• Difficulty standing after lying down  

• Sleeping more than usual  

• Less enthusiasm for walks or playtime  

• Muscle loss in the back legs  

• Irritability when certain joints are touched 

Not every dog shows every symptom. Some continue walking normally but avoid activities they once loved, while others become noticeably slower during daily routines. 

What do dog arthritis symptoms look like at home? 

Many of the earliest signs happen during everyday moments rather than on walks.

You may notice your dog pauses before getting into the car when they used to jump in without hesitation. Maybe they don't race to greet you at the door anymore, or they stop asking to play fetch after only a few throws.

Other dogs begin lying down more often during walks, choose softer places to sleep, or take extra time getting out of bed in the morning. You might even notice them walking behind you instead of leading the way like they once did.

These changes don't always point to arthritis, but they're worth paying attention to. Dogs often compensate for joint pain long before they develop an obvious limp.

Why do dogs get arthritis?

Arthritis develops when joints experience damage over time. For some dogs, that's simply the result of aging. For others, an underlying condition puts extra stress on their joints years before arthritis develops.

Common causes include:

• Normal wear and tear over time  

• Previous injuries, including torn cranial cruciate ligaments (CCLs)  

• Hip dysplasia  

• Elbow dysplasia  

• Obesity, which places extra stress on joints  

• Joint infections or inflammation  

• Genetics  

• Certain orthopedic conditions

A dog doesn't have to be elderly to develop arthritis. In fact, dogs recovering from knee injuries or orthopedic surgery may begin developing arthritis much earlier in life. 

Which dogs are more likely to develop arthritis?

While any dog can develop arthritis, some are at greater risk.

Large and giant breeds tend to experience arthritis more often because their joints support more weight throughout their lives. Senior dogs are also more likely to develop osteoarthritis as cartilage naturally wears down with age.

Dogs that are overweight face additional stress on their joints with every step they take, increasing both the likelihood and severity of arthritis. Likewise, dogs with previous orthopedic injuries or congenital conditions like hip dysplasia often develop arthritis earlier than other dogs.

Even active working or sporting dogs can be more susceptible because of the repeated stress placed on their joints over many years.

How can I tell if it's arthritis or something else?

While arthritis is a common cause of stiffness and limping, it isn't the only possibility. Similar symptoms can also result from a torn CCL, muscle strains, paw injuries, neurological conditions, or other orthopedic problems.

Because many of these conditions overlap, it's difficult to know the cause based on symptoms alone. Your veterinarian will perform a physical examination, evaluate how your dog walks, and may recommend X-rays or other imaging to determine what's causing their discomfort.

When should I have my dog evaluated? 

If your dog has been limping, moving more slowly, or showing signs of stiffness for more than a few days, it's worth scheduling a veterinary exam. Even if the symptoms seem mild or come and go, they can be an early indication of arthritis or another orthopedic condition that benefits from prompt evaluation.

You should also have your dog seen if they're struggling to stand up, avoiding stairs, crying out when moving, or no longer interested in walks or play. These changes can affect your dog's quality of life and shouldn't be dismissed as simply getting older.

The sooner arthritis is identified, the sooner your veterinarian can develop a plan to help manage pain, improve mobility, and slow the progression of joint damage. At Lovet, we offer same-day appointments, easy online scheduling, and flexible payment options, making it easier to get answers when you're concerned about your dog's mobility. 

How is arthritis treated?

While arthritis can't be cured, it can often be managed successfully. The right treatment plan depends on your dog's age, overall health, lifestyle, and the severity of their arthritis.

Treatment may include medications to reduce pain and inflammation, maintaining a healthy weight, low-impact exercise, physical rehabilitation, joint supplements, or environmental changes that make it easier for your dog to move comfortably at home.

Many dogs benefit from a combination of therapies rather than a single treatment. Your veterinarian will work with you to create a plan that's tailored to your dog's needs.

If your dog is diagnosed with arthritis, there's plenty you can do to help them stay active and comfortable. Read our companion guide to learn more about treatment options, pain management, and practical ways to care for a dog with arthritis at home.

What can I do if I think my dog has arthritis?

It can be difficult to tell whether your dog is simply slowing down with age or living with joint pain. The important thing is not to ignore changes in their movement or behavior, especially if they're becoming more noticeable over time.

Arthritis is one of the most common conditions veterinarians diagnose in dogs, and many dogs continue to enjoy long, active lives with the right care. Recognizing the signs early gives your veterinarian the best opportunity to keep your dog comfortable and maintain their mobility.

If you've noticed stiffness, limping, or other changes that don't seem like your dog, your local Lovet team is here to help you get answers and create a plan that supports their long-term joint health. 

Dog arthritis FAQs

Can young dogs get arthritis?

Yes. Although arthritis is most common in older dogs, younger dogs can develop it after joint injuries, orthopedic surgery, or because of inherited conditions like hip or elbow dysplasia. 

What are the first signs of arthritis in dogs?

Early signs often include stiffness after resting, limping that comes and goes, reluctance to jump or climb stairs, slowing down on walks, difficulty standing up, and changes in activity or behavior. 

How do veterinarians diagnose arthritis in dogs?

Your veterinarian will perform a physical examination, evaluate your dog's movement and joints, and may recommend X-rays to assess the condition of the joints and rule out other possible causes of pain or limping.

Can arthritis in dogs be cured?

No. Arthritis is a progressive condition, but it can often be managed successfully. Early diagnosis and an individualized treatment plan can reduce pain, improve mobility, and help your dog maintain a good quality of life for years to come. 

Disclaimer: Not intended to be a substitute for professional veterinarian advice, diagnosis, or treatment. Always seek the advice of your veterinarian with any questions you may have regarding the medical condition of your pet. If you think your pet has a medical emergency, call or visit your veterinarian or your local veterinary emergency hospital immediately.