By the Woofio Team · Updated September 2026 · 9 min read
Almost nobody spots arthritis. What they spot is a dog who has become quieter, and a year later they realise when it started.
This guide covers the specific pattern that distinguishes arthritis from an injury or from ordinary ageing, the early signs that come long before an obvious limp, which dogs are at risk and at what age, and what happens when you take it to your vet.
The Pattern That Gives It Away
Any single sign below could be a dozen things. It is the combination, and the way it behaves over time, that points at arthritis.
| Behaviour | What it means |
|---|---|
| Worst on rising, better after five minutes | The single most characteristic sign. An injury tends to be worse the more he uses it; arthritis is the opposite |
| Worse the day after a long walk | A delayed reaction rather than an immediate one. Owners often blame the walk itself |
| Worse in cold, damp weather | Genuinely reported by owners across the board. Winter mornings are the giveaway |
| Built up over months, not hours | If you can name the day it started, think injury first |
| Good days and bad days | Ordinary ageing is even and gradual. Arthritis fluctuates |
| Both sides, so no obvious limp | A dog sore on both hips does not favour a leg. He just slows down, and that gets called old age |
The sentence to be suspicious of
"He is just slowing down." That covers real ageing and real arthritis equally well, and it is the reason most dogs are diagnosed years after it started. Healthy ageing is a steady, even decline in stamina. Arthritis is uneven: fine on Tuesday, stiff on Thursday, noticeably worse in February.
Early Signs and Later Signs
The early ones are the useful ones, because that is when the daily routine can still change the trajectory. They are also the ones nobody writes down.
Early, and easy to miss
- A pause before jumping onto the sofa or into the car, rather than a refusal
- Taking the stairs one at a time, or waiting to see if you are really going up
- Lying down more slowly, or dropping the last few inches
- Sleeping in a different position or a different room
- Turning for home a little earlier without you deciding it
- Less interest in the ball, the lead or another dog. Often read as maturity
- A short, stiff shuffle for the first minute of the morning
Later, and harder to ignore
- A visible limp, or a swaying, bunny-hopping back end
- Muscle loss over the hips or one shoulder, so one side looks smaller
- Refusing stairs, the car or the sofa altogether
- Licking repeatedly at one joint
- Grumbling when touched or moved, in a dog who never did
- Panting at rest in a cool room, and restlessness at night
- Difficulty getting up from a hard floor, or needing two attempts
For a broader look at how dogs signal discomfort of any kind, including causes that are not arthritis, see how to know if your dog is in pain.
Which Dogs Get It, and When
The common assumption is that arthritis is a condition of very old dogs. It is not. It is a condition of worn or badly loaded joints, and joints can be worn or badly loaded from young.
| Raises the risk | Why |
|---|---|
| A developmental condition | Hip or elbow dysplasia means the joint was never quite right, so arthritis follows years earlier than it otherwise would |
| A previous injury | A cruciate rupture or a fracture through a joint changes how it loads permanently |
| Excess weight | More load through every joint, every step, for the whole of the dog's life |
| Large and giant breeds | More mass through the same joints, and higher rates of developmental conditions |
| Very high impact activity | Years of hard turns, ball throwers and repeated jumping add up |
| Age | Real, but it is the accumulation rather than the number of birthdays |
A five-year-old Labrador with elbow dysplasia can have more arthritis than a twelve-year-old terrier with none. If your dog is in any of the rows above, watch the early list rather than waiting for the later one.
What It Might Be Instead
Several things imitate arthritis closely enough to fool an owner, and some of them need attention faster.
- A cruciate ligament injury. Common, and often mistaken for arthritis when it comes on gradually. Sitting with one back leg stuck out to the side is a clue. See dog limping on a back leg.
- A lower back or nerve problem. Scuffed toenails on one side, wobbliness, or legs crossing over point here rather than at a joint.
- Something in the paw. Astonishingly common, and it resolves the moment it is found.
- Cognitive change. An older dog who is restless at night, disorientated or withdrawn may not be sore at all.
- Systemic illness. Heart, thyroid and other conditions all reduce a dog's willingness to move. That is why a vet examines the whole dog rather than the leg.
How a Vet Confirms It
There is no home test. Confirmation is a clinical assessment plus imaging, and it matters, because the management plan differs depending on which joints are involved and what caused it.
- Gait assessment. Watching your dog walk and trot, usually outside rather than in the consulting room.
- Hands-on examination. Each joint through its full range, comparing left against right, feeling for thickening, reduced movement and discomfort.
- X-rays. These show the bony changes that come with arthritis, and rule several other things out. Often done under sedation so the positioning is right.
- Bloods. Not to diagnose arthritis, but to check what else is going on and to establish a baseline before any long-term medication.
One thing worth knowing: x-ray changes and how sore a dog actually is do not always match. Some dogs with dramatic images cope well; some with mild images are uncomfortable. Your vet treats the dog, not the picture.
What to Do Before the Appointment
SEVEN DAYS OF NOTES
Film the first minute. Twenty seconds of him getting out of bed and walking away, from behind, on a hard floor. Do it three mornings.
Note height, daily. Sofa, bed, car. Did he go, hesitate, or ask for help?
Note who ended the walk. You or him.
Add the weather and whether the day before was a big one. That is how the pattern shows itself.
Bring the notes and the videos. Arthritis has a habit of hiding in the excitement of a consulting room, and a vet can do far more with a week of evidence than with a description.
If the Answer Is Yes
A diagnosis is not the bad news it feels like on the day. Arthritis is manageable, most dogs live a full and comfortable life with it, and the routine around it does most of the work: body weight, the shape of the exercise, grip and ramps at home, whatever your vet prescribes, and consistent daily joint support.
The full plan is set out in managing arthritis in dogs, including what to track each month and when to go back.
Daily joint support, built on green-lipped mussel
Woofio Hip & Joint Chews are a soft daily chew that supports joint health and normal mobility in dogs. Most dogs eat them like a treat. Talk to your vet about anything you add alongside prescribed treatment.
See the chewsFree UK delivery · 90-day guarantee
Common Questions
What are the first signs of arthritis in dogs?
Hesitating before jumping, taking stairs one at a time, a short stiff spell for the first minute after waking, and losing interest in the ball or the lead. All of them are usually put down to age long before anyone says arthritis.
Can I tell at home whether my dog has arthritis?
You can spot the pattern, which is what sends you to the vet, but you cannot confirm it. Several other conditions look the same from the sofa, and some of them need faster attention, so the appointment is the point rather than the conclusion.
At what age do dogs get arthritis?
Any age. It is common in older dogs simply because wear accumulates, but dogs with hip or elbow dysplasia, or with a previous joint injury, can have significant arthritis while still young. Size and body weight both bring it forward.
Does arthritis in dogs hurt all the time?
It fluctuates. Most dogs have comfortable stretches and harder ones, typically worse after heavy exercise and in cold, damp weather. That fluctuation is itself one of the clues.
My dog has arthritis. What can I give him?
Anything medicinal comes from your vet, and human painkillers are never safe to hand out. Beyond that, the things that help most are not products: weight control, consistent moderate exercise, grip on slippery floors, ramps instead of jumps, and a supportive bed. A daily joint supplement fits alongside those as part of the routine.
Related Guides
- Managing Arthritis in Dogs: A Practical Guide
- How Do I Know If My Dog Is in Pain? 12 Signs to Look For
- Dog Limping on a Back Leg: Causes and What to Do
- Elbow Dysplasia in Dogs: Signs, Diagnosis and Living With It
- Hip Dysplasia in Dogs: Symptoms, Hip Scores and Treatment
This guide is general information for dog owners and is not veterinary advice. Arthritis can only be diagnosed by a vet. If you recognise the pattern described here, book an appointment. Woofio Hip & Joint Chews are a complementary pet food that supports joint health and normal mobility; they are not a medicine and are not intended to diagnose, treat, prevent or cure any condition.