Ask most owners how they would know their dog was in pain and they describe crying, limping, or flinching. Those are real signs. They are also late signs, and many dogs in ongoing discomfort never produce them at all.

Chronic pain in an older dog usually does not announce itself. It shows up as a slow narrowing of what the dog chooses to do — and because the dog is choosing, it looks like personality or age rather than pain.

This is worth understanding for one practical reason: pain that is recognized is often something a veterinary team can do something about. Pain that gets filed under “he's just old” is not.

The signs that get missed

Almost all of these are things a dog stops doing, which is exactly why they slide past.

  • Hesitation before movement. A pause before jumping, a gathering moment before standing, two attempts where there used to be one.
  • Changed sleeping position or location. A dog who always curled up now lying flat, or who has abandoned a favorite spot that requires a step.
  • Less greeting. Not coming to the door, or coming more slowly. Easy to read as aloofness.
  • Reluctance to be touched somewhere specific. A subtle lean away, a head turn, stiffening under the hand.
  • Irritability that is out of character. Snapping at another pet or a child, particularly when approached from a specific side or touched in a specific place.
  • Restlessness at night. Repeated repositioning, pacing, difficulty settling.
  • Eating more slowly, or dropping food. Mouth pain is among the most commonly missed sources of discomfort in older dogs.
  • Excessive licking of one area. A joint, a paw, one flank.
  • Panting that does not match the temperature or the activity.
  • Narrowing interest. Still enjoying food but no longer the walk. Still enjoying the walk but no longer the stairs to the bedroom.

No single item on that list means pain. A cluster of them, or one of them appearing where it was not there three months ago, is worth raising.

Why dogs are so good at hiding it

Concealing weakness is ordinary animal behavior, not stoicism in a moral sense. It also means a dog who is genuinely uncomfortable will still wag, still eat, and still greet you — and owners reasonably take that as evidence that nothing is wrong.

The other reason is us. Discomfort that arrives gradually gets absorbed into what we think of as normal. You do not remember what your dog's rise from the floor looked like eighteen months ago. You remember roughly, generously, and in a way that flatters the present.

Owner words and clinic words

Part of what makes this hard to look up is that you and your vet are describing the same dog in completely different vocabulary. You'd say he's slowing down, or he's just old, or he isn't himself lately. The clinical note might say canine osteoarthritis, or degenerative joint disease, or chronic pain in a senior canine patient. Same dog, same problem, two languages.

That gap does real damage. Search the way an owner talks and you get listicles; search the way a clinic writes and you get material aimed at practitioners. Neither is quite what you needed at eleven at night.

The good news is that nobody expects you to arrive with the right term. Arriving with the right observation is worth far more. "He took three tries to get up on Tuesday and again this morning" is more useful to a vet than any label you could guess at.

What to do instead of guessing

You cannot diagnose pain at home, and trying to is the wrong goal. What you can do is produce a description accurate enough to be acted on.

  • Record it when it happens. Not the impression afterward. Note the time, what your dog was doing, and what you saw.
  • Take video. This is the single most useful thing you can bring. Gait, rising, stairs — thirty seconds of video is worth several paragraphs of description, and dogs are famously fine at the clinic and stiff at home.
  • Watch for pattern, not incidents. Worse in the morning, worse after rest, worse after a long walk, worse in cold weather. Patterns point somewhere. Single bad days do not.
  • Track one thing at a time. Pick the change that concerns you most and follow it for a week rather than trying to monitor everything.
  • Note what it costs your dog. “He has stopped coming upstairs at night” is more useful than “he seems stiff.”

Things not to do

Do not give human pain medication. Common human analgesics are genuinely dangerous to dogs, and this is one of the most frequent causes of avoidable harm in an otherwise well-intentioned household. Do not give another animal's medication either, and do not start, stop, or adjust a prescribed medication on your own judgment.

If your dog is uncomfortable, the useful action is a phone call, not a cabinet.

The conversation worth having

Arrive with a description, not a theory. What changed, when it began, whether it came on suddenly or gradually, whether it is constant or comes and goes, and whether it is getting better, staying the same, or getting worse. Bring the video. Bring the dates.

Then ask the questions that make the visit useful afterward: what should improve if this is working, how soon should I expect to see it, what should I watch for at home, and what would make this a same-day problem.

Common in older dogs does not mean harmless, untreatable, or comfortable. A great deal of what gets accepted as “just getting old” turns out to be something that could have been made easier — often months earlier than anyone asked.

Further reading

Starting points for senior-dog care. None of this replaces an examination by a veterinarian who knows your dog.

  1. Caring for senior cats and dogs — American Veterinary Medical Association
  2. 2023 AAHA Senior Care Guidelines for Dogs and Cats — American Animal Hospital Association
  3. Riney Canine Health Center — Cornell University College of Veterinary Medicine