TL;DR: Dogs almost never show pain the way we expect. Crying is rare. The real signals are changes in normal behaviour: sleeping more or less, a stiff first minute after resting, reluctance on stairs or jumps, eating slower or on one side, a tucked or hunched posture, panting at rest, licking one spot, and a dog who stops greeting you at the door. If something your dog has always done easily suddenly looks like effort, treat that as pain until a vet says otherwise.
Hiding pain is an instinct, not stoicism. A dog who looks weak in the wild is a target, and that wiring has not gone anywhere. So the question is almost never "is my dog crying?" It is "what does my dog do differently this month?"
What are the most common signs a dog is in pain?
Here are the twelve that vets see most, roughly in order of how often owners miss them.
- Sleeping more, or sleeping worse. Pain both exhausts a dog and interrupts rest. Look for a dog who circles and resettles repeatedly, or who gets up during the night.
- A stiff first minute. Getting up slowly after a nap and loosening up after a few steps is the classic early arthritis pattern. Owners see it as normal ageing. It is not.
- Reluctance with stairs, cars, or the sofa. Hesitating at the bottom of the stairs, or needing a run-up to jump into the boot, is a joint or back signal.
- Eating differently. Chewing on one side, dropping food, taking kibble and leaving it, or preferring soft food almost always means mouth pain.
- Panting at rest. Panting with no heat and no exercise is a pain and stress signal. Our guide to why your dog is panting covers the other causes worth ruling out.
- A change in posture. A hunched back, a tucked belly, or a "praying" stretch with the chest down and rear up often points to abdominal pain.
- Licking or chewing one spot. Repeated attention to a single paw, joint, or flank is a dog pointing at the problem.
- Less greeting, less interest. A dog who stops coming to the door, opts out of a game, or takes himself to another room is often sore, not sulking.
- New grumpiness or flinching. Growling when touched in one area, or turning the head toward your hand, is communication, not a behaviour problem.
- Shaking, trembling, or restlessness. Especially when it will not settle.
- A change in walk. Shortening the stride, lagging behind, or stopping on a route he used to love. If your dog is refusing walks outright, why won't my dog walk goes through the causes one by one.
- Toilet changes. Straining, accidents indoors from a previously clean dog, or difficulty getting into position to squat.
None of these on their own proves pain. Two or three together, appearing in the same few weeks, usually does.
How do you tell pain from ageing or laziness?
Use three questions.
Is it new? A dog who has always disliked stairs is different from one who stopped using them last month.
Is it getting worse? Pain progresses. A mood does not.
Is it consistent? Real pain shows up on cold mornings, after long rests, and after hard exercise. If the stiffness always appears in the same situations, it is physical.
The trap is the phrase "he's just slowing down." Slowing down is a symptom with a cause, and in most middle-aged and older dogs the cause is joint pain that responds well to treatment. Our piece on signs of arthritis in dogs covers the early clues in detail, and exercise for senior dogs covers how to keep an older dog moving without making things worse.
Which signs mean you should go to a vet immediately?
Do not wait for an appointment slot if you see any of these.
- A hard, swollen, or tight belly, especially with repeated retching that brings nothing up. This can be bloat, which is a genuine emergency measured in hours.
- Crying out when touched or picked up.
- Pale, white, or blue-grey gums, or collapse.
- Cannot stand, or will not put any weight at all on a leg.
- Extreme restlessness that will not settle, or a dog hiding in an unusual place.
- Laboured breathing, or a breathing rate that stays high at rest.
For a limp that appeared suddenly, why is my dog limping walks through what to check in the first 24 hours.
What should you do at home while you wait?
Keep it simple and safe.
- Do not give human painkillers. Ibuprofen, paracetamol, and aspirin are toxic to dogs. This is the single most common way a worried owner makes things worse.
- Rest, do not stretch. Short lead toilet breaks only. No stairs, no jumping, no ball.
- Write down what you see. When it started, what makes it worse, which leg, what time of day. Your vet gets more from this than from a five-minute exam.
- Film it. A ten-second video of the stiff walk is worth more than a description, because most dogs look suspiciously fine in a consult room.
How does tracking activity help you catch pain earlier?
Pain shows up in the numbers before it shows up in your memory. A dog who is sore usually moves less, rests more, and sleeps in shorter blocks, and that drift starts weeks before it becomes obvious enough to mention.
That is the real argument for watching daily activity rather than trusting recall. A tracker like Rocket gives you the baseline: this dog normally does this much, and this week he is doing noticeably less. It will not diagnose anything, and it is not a substitute for a vet. What it does is turn "he seems a bit quiet lately" into "his activity dropped a third three weeks ago", which is a far better thing to walk into an appointment with.
The bottom line
Look for changed behaviour, not for crying. Sleeping more, stiffness after rest, hesitating at stairs, chewing on one side, and opting out of things he used to love are the signals that matter. Two or more together deserve a vet appointment. A hard belly, pale gums, collapse, or a dog who cannot stand deserve one today. And whatever you do, keep the human medicine cabinet shut.