My Dog Started Refusing Stairs at Age 6 — and I Told Myself He Was Just Getting Older

I called it "taking it easy." Cooper was six, and he'd stopped jumping into the back of my SUV. Instead of bounding up the front steps, he'd pause at the bottom like he was deciding whether it was worth the effort. When friends asked, I shrugged and said, "He's not a puppy anymore."

My vet saw it differently. She watched Cooper walk across the exam room — just ten steps — and said, "How long has the right hind leg been stiff?"

I said a few months, maybe. She did a range-of-motion test on his hip, and Cooper whipped his head around with a look I'd never seen before. Not aggression. Pain. Sharp enough that a dog who'd let toddlers crawl on him for years nearly snapped at the person trying to help him.

The X-ray showed early arthritis in both hips and his left elbow. He was six years old. I'd been telling myself he was "slowing down."

The Signs I Missed (and You Probably Are Too)

Dogs don't limp until arthritis is advanced. By the time you see an obvious hitch in their step, there's already significant joint damage. The early signs are subtle — so subtle I dismissed every single one for at least a year. Here's what I wish I'd known to watch for.

1. The Stair Hesitation

This was the first sign with Cooper, and I rewrote it in my head as "he's being lazy." A dog who previously took stairs two at a time suddenly pauses at the bottom, takes them one at a time, or waits for you to go first. Sometimes they'll go up fine but come down sideways — that's because going down puts more pressure on the front legs and shoulders.

What I learned: hesitation isn't laziness. It's your dog's brain calculating whether the movement is worth the discomfort.

2. The "Bunny Hop" Up Stairs — and Why It's a Red Flag

You know the move — both back legs moving together instead of alternating. I thought it was just Cooper's "style." My vet told me it's one of the most reliable early indicators of hip pain. When a dog uses both back legs simultaneously going up stairs, they're reducing the range of motion required in each hip joint. It's a compensation pattern, not a quirk.

3. Licking One Spot Relentlessly

About four months before the vet visit, Cooper started licking the inside of his right front "wrist" — the carpus. He'd do it for ten minutes at a time, leaving a rust-colored saliva stain on his fur. I thought he'd developed a weird habit. The vet explained that dogs frequently lick over painful joints — it's a self-soothing behavior, and the warmth and pressure provide temporary relief. If your dog is fixated on licking a specific joint, your vet needs to see it.

4. The Personality Shift Nobody Warns Me About

This one hurts to admit. Cooper got grumpy. Not aggressive, but... off. He stopped wanting to play tug. He'd walk away when I picked up the leash — this from a dog who used to lose his mind at the word "walk." He started sleeping in a different room instead of pressed against my legs on the couch.

I interpreted all of this as him "mellowing with age." In reality, chronic pain was making everything less fun. Playing tug hurt his neck. Walks made his hips ache. Jumping onto the couch wasn't worth it anymore. He wasn't mellowing — he was coping.

5. The "Sitting Weird" Signal

Pay attention to how your dog sits. A dog with hip or knee pain will often sit with one leg splayed out to the side — what vets call a "lazy sit" or "puppy sit." In a puppy, it's normal flexibility. In an adult dog, especially if it's only on one side, it's often a sign they're avoiding bending the affected joint fully.

Cooper developed a habit of sitting with his right leg straight out. I'd seen him do it for months and thought nothing of it.

6. The Morning Stiffness That "Goes Away"

For about six months, Cooper would be noticeably stiff for the first 10-15 minutes after waking up. He'd stretch dramatically — longer than normal — and take a few hesitant steps before moving normally. By the time we got outside for our walk, he seemed fine. I convinced myself it was just "sleeping funny."

Here's what's actually happening: inflammatory fluid accumulates in arthritic joints overnight when the dog is still. Movement circulates the fluid and warms up the joint, reducing stiffness. If your dog is stiff in the morning but fine after moving around, that's classic inflammatory arthritis — not sleeping funny.

7. Muscle Loss You Can't See Until You Compare Photos

This was the one that made me feel genuinely stupid. My vet pointed out that Cooper's right thigh was visibly smaller than his left. She pulled up a photo I'd posted on Instagram six months earlier — and the difference was already there, just subtle. Arthritic dogs shift weight off the painful leg, and the unused muscle atrophies. By the time it's obvious to the naked eye, they've been compensating for a while.

She taught me a simple check: stand behind your dog and look at both thighs from above. Are they symmetrical? Run your hands down both legs at the same time. Does one feel bonier, with less muscle padding?

What Actually Helped (After the Diagnosis)

Getting the diagnosis felt awful, but it also meant I could finally do something. Here's what made a real difference for Cooper — backed by my vet and a canine rehab specialist.

Weight management came first. I've written about this separately, but Cooper dropped from 92 to 76.5 pounds, and the difference in his mobility was noticeable within weeks. Every extra pound is roughly four pounds of pressure on the joints. Fifteen pounds of weight loss meant 60 fewer pounds of force on his hips with every step.

Joint supplements aren't magic, but they're not nothing. My vet recommended a product with glucosamine, chondroitin, and green-lipped mussel (not just glucosamine alone). She was honest: the evidence is mixed, and it doesn't work for every dog. Give it 6-8 weeks before deciding. For Cooper, I noticed less morning stiffness by week 5. It's subtle — don't expect a dramatic transformation.

Low-impact exercise is better than rest. This was counterintuitive to me. I thought rest would help his joints heal. My vet explained that muscle atrophy from inactivity makes arthritis worse. The movement that keeps the joint fluid circulating and the supporting muscles strong is what helps. We switched from fetch (high-impact stops and turns) to swimming and slow, sniffy walks on soft surfaces. Swimming was transformative — full range of motion with zero joint impact.

Home adjustments that cost almost nothing. I put a yoga mat on the hardwood floor path Cooper takes from his bed to the back door. Non-slip surface, instant improvement in his confidence walking. I got a $30 folding ramp for the SUV (way cheaper than the $200 "pet ramp" and works exactly the same). I raised his food and water bowls six inches so he doesn't have to bend his front legs down to eat. Total cost: under $50. Impact: huge.

Adequan injections. If your vet hasn't mentioned this, ask about it. It's an injectable medication that helps protect joint cartilage — not a painkiller, but something that targets the disease process. Cooper gets one injection monthly now, and it's made more difference than any oral supplement. It's not cheap — roughly $50-70 per injection — but it's been worth every penny for us.

The Vet I Almost Didn't See Soon Enough

I waited too long with Cooper. I rationalized every sign. What finally got me to the vet wasn't wisdom — it was a sharp reaction during a routine exam. If that hadn't happened, I might have kept dismissing the signs for another year while his joints deteriorated.

If you recognize your dog in any of this — the stair hesitation, the morning stiffness, the "lazy sit," the personality shift — make the appointment. Early intervention with weight management, appropriate exercise, and joint support can slow arthritis progression significantly. Waiting until they're limping means you've already lost ground.

Cooper is eight now. He still has arthritis — that doesn't go away — but he takes stairs without pausing, jumps into the car with a running start, and plays tug again. He's not a puppy, but he's not suffering in silence either.

What finally pushed me to make the appointment was knowing I'd been wrong about every sign. I'd rather be the person who takes their dog to the vet for "probably nothing" than the person who waited until "definitely something."

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Did you catch your dog's arthritis early, or did you miss the signs like I did? What was the thing that finally made you realize something was wrong? I'd love to hear — these stories help other owners more than any checklist ever could.