Plain-English summary
Your dog doesn't have to be old, or visibly limping, for osteoarthritis to already be there. A 2024 study screened 123 dogs between 8 months and 4 years old and found joint changes on X-rays in a substantial share of them — and in the dogs whose joint pain was separately confirmed by a vet, owners had noticed something was off only about 30% of the time. Dogs are good at hiding discomfort, especially when it develops gradually. None of this means every young dog needs imaging, and it's not a reason to assume the worst. It's a reason to mention small things to your vet sooner rather than later.
What the study found
In one 2024 study of 123 young dogs, researchers found radiographic signs of osteoarthritis in nearly 40% of dogs screened. Depending on how strict the pain threshold was set, somewhere between roughly 16% and 24% of the dogs met the study's criteria for "clinical" osteoarthritis — meaning a veterinarian found both joint pain on examination and a matching change on the X-ray, not just one or the other.
The most commonly affected joints, in descending order, were the elbow, hip, tarsus, and stifle. Only two of the dogs identified with clinical osteoarthritis were receiving any pain management at the time of screening.
The study's own authors are upfront about its limits: it was conducted at a single practice, there's currently no agreed-upon "gold standard" for diagnosing or grading osteoarthritis pain in dogs, and the assessment tools available today were largely built and validated for older dogs — not the young ones in this study. So this is one well-designed study, not a settled fact about every dog everywhere — but it's a meaningful data point.
Why pet owners may miss subtle signs
The clearest finding for pet owners isn't the prevalence number — it's the recognition gap. Among dogs the study confirmed as having clinical osteoarthritis, owners had picked up on it in only about 30% of cases. That's not a failure of attentiveness. Early joint changes tend to show up as small things: a little more hesitation before a jump, a beat of stiffness getting up from a nap, a slightly shorter walk before turning back. None of that reads as "limping," so it's easy to file it away as a dog just having an off day, or simply getting older — even at two or three years old.
What pet owners should track
Worth noting, even if it seems minor at the time:
- Hesitation or reluctance before jumping onto furniture, into a car, or up stairs
- Stiffness right after waking up or after resting, that seems to "warm out of" within a few minutes
- A shorter stride, a head bob, or favoring one side during walks
- Less enthusiasm for activities your dog used to seek out
- Any of the above showing up consistently over a couple of weeks, even if mild
A short video of the behavior is often more useful at a vet visit than a description, since these signs can be subtle or intermittent.
What PAWai can help organize
PAWai can help you log these small observations as they happen — when you first noticed something, how often it shows up, and whether it's changed — so you arrive at your next vet visit with a clear, dated account instead of trying to recall it from memory under time pressure. PAWai does not diagnose osteoarthritis or any other condition, and it does not replace a veterinarian. Its role here is narrowly organizational: helping you notice patterns and communicate them clearly, so your vet has better information to work with.
Disclaimer
PAWai organizes information and educates pet owners. PAWai does not diagnose conditions or recommend treatment. Always consult a licensed veterinarian for medical decisions about your pet.
Citation
Enomoto, M., de Castro, N., Hash, J., Thomson, A., Nakanishi-Hester, A., Perry, E., Aker, S., Haupt, E., Opperman, L., Roe, S., Cole, T., Archer Thompson, N., Innes, J. F., & Lascelles, B. D. X. (2024). Prevalence of radiographic appendicular osteoarthritis and associated clinical signs in young dogs. Scientific Reports, 14. https://doi.org/10.1038/s41598-024-52324-9