Why dogs hide pain — and why owners miss it
Dogs evolved as pack animals in which obvious weakness was a real problem. The instinct to mask discomfort is wired in. It is not stoicism in the noble sense — it is an old survival behaviour that, in 2025, mostly serves to delay medical care.
The other half of the puzzle is the people. Owners see their dog every day, and slow change is the hardest pattern to detect when you live inside it. A dog who is six percent stiffer than they were last month, every month, for nine months, looks normal at every step. They look different to a vet who has not seen them since last year.
The checklist below was distilled from twenty years of senior wellness exams. It focuses on the early signs — the ones that show up months before the limp does.
Sign 1 · Reluctance in the first thirty seconds after rest
Pay attention to the moment your dog stands up from a long lie-down. The first ten paces are diagnostic. A senior dog with early joint pain will often:
- Take a few stiff steps before the gait smooths out.
- Hesitate visibly before changing direction.
- Move their weight backwards, like they are deciding whether to commit.
By thirty seconds in, most of this disappears. That is the part that fools owners — “he was fine once he got going.” The first thirty seconds is the data.
Sign 2 · Sit-to-stand asymmetry
Watch the dog rise from a relaxed sit. A young, comfortable dog rises in one smooth motion. A senior dog with hindlimb discomfort tends to:
- Plant one front paw forward and pull themselves up using mostly front-end strength.
- “Step out” a back leg sideways before standing — offloading discomfort to one hip.
- Take an extra micro-pause before committing.
If you can film this on your phone over the next week and play it back, you will often see something you missed live.
Sign 3 · The “quiet” dog who used to be louder
This is the sign most often missed. Dogs in chronic discomfort frequently become quieter, calmer, “more well-behaved.” Owners describe it as their dog mellowing with age. Sometimes that is what it is. Often it is the dog reducing the amount of movement and interaction that produces pain.
Sign 4 · A change in sleep position
Dogs choose sleep positions that minimise pressure on uncomfortable joints. The classic shifts I see in early arthritis are:
- From curled on their side to stretched flat on their side, legs out.
- From sleeping in the middle of the floor to sleeping pressed against walls or furniture (using contact for joint support).
- Reluctance to sleep on hard floors that they used to choose freely.
This one is easy to confirm — most owners can remember exactly how their dog used to sleep two years ago.
Sign 5 · The grooming flinch
Run a slow, light hand from the base of the skull down to the tail and back, with the dog standing relaxed. Then do the same down each leg. You are not pressing — you are stroking.
A dog with localised discomfort will often produce a small, almost imperceptible response: a flinch, a head turn toward your hand, a brief lift of the paw on that side, a held breath. None of these are dramatic. Most owners only spot them after the third or fourth dog they examine this way.
Sign 6 · The shifted weight stance
Watch your dog standing still — really standing, not waiting for food. From behind, both back legs should bear roughly equal weight, with paws planted symmetrically. Dogs in early hindlimb pain will:
- Stand slightly “base narrow” at the back, paws closer together than at the front.
- Hold one back leg fractionally further forward than the other.
- Cock a hip subtly to the side.
These postural cheats are unconscious. They are also reliable.
Sign 7 · Behavioural shortness — the irritable senior
A previously easy-going dog who has become subtly less tolerant — of children, of being touched in certain places, of being asked to wait at doors — is often a dog in low-grade chronic pain. Pain shortens patience in dogs the same way it shortens patience in people.
Owners frequently attribute this to “getting set in his ways” or “he is just old now.” Sometimes that is true. More often it is pain that nobody has named yet.
If a senior dog has become less playful, less patient, and slightly less responsive to commands over the past six months, the most useful question is not “is he getting stubborn?” It is “is he getting sore?”
What to do this week
If two or more of the signs above describe your dog, treat this as a useful nudge rather than a crisis. Here is the practical next step:
- Film thirty seconds of your dog standing up from a long rest. Take it to your vet. This is more diagnostic than any conversation.
- Ask specifically for a senior orthopaedic assessment — not just a general check. A focused exam of joints and spine takes ten minutes and identifies things a wellness check sometimes misses.
- Discuss a managed pain trial if appropriate. A two-to-four week course of an appropriate analgesic (always vet-prescribed) is one of the cleanest diagnostic tools in geriatric medicine. If your dog visibly improves on it, you have your answer.
- Adjust the home environment. Non-slip rugs at the foot of stairs, a memory-foam bed, a ramp into the car. Small, mechanical things that reduce daily strain.
The point of the list
Catching pain early matters because every senior dog has a finite amount of mobility left, and untreated pain spends that mobility faster than necessary. A dog who is comfortable through their last two years gets to be a dog through their last two years. A dog whose pain is missed until it cannot be missed often loses six to twelve months of good life before treatment starts.
None of the signs on this list are dramatic on their own. That is the point. The dramatic signs are the ones every owner already catches. The quieter ones are where the time is.
Continue reading: How long do senior dogs really live? · Feeding a senior dog: what changes after seven
Try the tool: Estimate your dog’s remaining lifespan →