Signs of Arthritis in Senior Dogs: What Most Owners Miss

Your dog is sleeping more than usual. Getting up slowly after a nap. Not as excited about the evening walk. And you think — he's just getting older.

Maybe. But maybe not.

As a veterinarian, one of the things I see most consistently is owners bringing in a dog with advanced arthritis who had been showing signs for months — sometimes years — that were quietly dismissed as "just aging." By the time limping appears, the disease is already well progressed.

Dogs don't always limp or cry out when they're in pain. Many adapt their behaviour to hide discomfort. That's the thing about dogs — they're stoic. They don't complain. And that stoicism costs them.

This post is about catching arthritis before it costs your dog their comfort.

What Is Arthritis in Dogs?

Arthritis — more precisely Osteoarthritis (OA) — is a degenerative joint disease. It happens when the cartilage cushioning your dog's joints gradually breaks down, causing bones to move against each other with increasing friction, inflammation, and pain.

It progresses slowly. There's no dramatic moment. Just a quiet, steady worsening over months and years — which is exactly why it gets missed.

According to the Merck Veterinary Manual, up to 80% of dogs over the age of 8 are affected by arthritis. Read that again. Eight out of ten senior dogs. And yet most owners have no idea their dog is living with joint pain right now.

The Signs Most Owners Miss

1. Sleeping more than usual

This is the most dismissed sign I see. A sudden, sustained increase in sleep is one of the earliest indicators of chronic pain — conditions that often respond dramatically to treatment once actually caught. If your dog is sleeping noticeably more over weeks or months, don't just accept it. Note it. Track it. Mention it to your vet.

2. Stiffness after rest — the tell-tale pause

Watch your dog the moment they stand up after lying down. Is there a pause? A careful, slow first few steps before movement smooths out? Most owners see this and think the dog just needs a second to wake up. That's exactly what early arthritis looks like. Healthy joints don't need a warm-up period. Inflamed ones do.

3. Slowing down on walks — not stopping, just slowing

Many dogs never limp, even with significant joint pain. Slowing on walks is frequently the only visible signal. If your dog used to walk for 45 minutes and now seems done after 20, that's data. Don't ignore it.

4. Avoiding stairs, jumping, or getting onto furniture

Reluctance to climb stairs or jump onto furniture is a common early sign of arthritis. If your dog suddenly stops jumping onto the sofa they've used for years, something has changed. They didn't decide they preferred the floor — it hurts to jump.

5. Personality and mood changes

Pain can make dogs irritable, withdrawn, or unusually quiet. A dog that used to greet you at the door and now barely lifts their head isn't being moody — they may be in chronic pain. Some dogs become snappy when touched in certain areas. If your normally gentle dog flinches or growls when you touch their hips or lower back, take that seriously.

6. Changes in posture

Watch how your dog stands and walks. Are they shifting weight forward, off their back legs? Carrying their head lower than usual? These are compensation patterns — the body's way of relieving pressure from painful joints.

7. Licking or chewing at joints

Dogs will lick at areas of discomfort. Persistent licking at a knee, hip, or shoulder — with no visible skin issue — can indicate underlying joint pain.

Which Dogs Are Most at Risk?

All senior dogs can develop arthritis, but some are at significantly higher risk:

Large and giant breeds (Labradors, German Shepherds, Golden Retrievers, Rottweilers) — their size puts greater mechanical stress on joints throughout their lives.

Overweight dogs — excess weight is one of the most significant accelerators of joint degeneration. Even a small amount of extra weight dramatically increases joint load.

Dogs with previous joint injuries — a cruciate ligament tear earlier in life, for example, strongly predisposes that joint to arthritis later.

Dogs over 7 years old — though large breeds can show signs from age 5.

What You Should Do Right Now

Step one — observe properly. For the next two weeks, consciously watch your dog. Note how long they sleep, how they get up, how they move on walks, whether they use stairs normally. Write it down. This observation data is genuinely useful when you speak to your vet.

Step two — book a vet visit. Not an emergency, but don't wait six months either. Early diagnosis makes a real difference. Early arthritis intervention significantly improves comfort and slows mobility decline compared to late-stage treatment. Your vet will do a physical examination, assess joint range of motion, and likely recommend X-rays to assess the degree of damage.

Step three — do not start supplements or pain medication without guidance. Human NSAIDs like ibuprofen and paracetamol are toxic to dogs. Even some dog-specific supplements interact with other conditions. Get a proper assessment first.

Step four — think about their environment. While you're waiting for your vet appointment, there are simple, low-risk things you can do: add a ramp or steps to furniture they normally jump onto, switch to an orthopedic dog bed, and shorten walks but keep them gentle and regular. Complete rest actually makes joint stiffness worse, not better.

A Note From Dr. Waleed

I wrote this post because arthritis is one of the most treatable conditions in senior dogs — and one of the most consistently undertreated, simply because the early signs are so easy to miss or explain away.

Your dog can't tell you they're hurting. But they are telling you — just not in the way we expect.

Pay attention to the quiet signals. They're the ones that matter most.

Have a question about your senior dog? Ask Dr. Waleed →