Why Is My Dog Yawning? What Science Says About This Common Signal

The Calming Signal You've Been Missing

Norwegian dog trainer and behaviourist Turid Rugaas coined the term “calming signals” to describe a set of behaviours dogs use to de-escalate tension — both with other dogs and with people. Yawning is one of the most common ones.

When a dog yawns in a tense or ambiguous situation — during a vet visit, when strangers approach, or right as you're raising your voice — they're not bored. They're self-soothing. The yawn is a way of saying: I'm feeling uncomfortable, and I'm trying to calm myself (and maybe you) down.

Dogs direct calming signals at each other too. If a dog approaches another off-leash too quickly, the other dog might yawn, lick their lips, or turn their head away — all ways of saying “I'm not a threat, let's keep this friendly.” It's a sophisticated social language that most owners never learn to read.

Contagious Yawning — And What It Says About Your Bond

Here's something remarkable: dogs yawn contagiously when humans yawn. A 2013 study published in PLOS ONE found that dogs yawned significantly more often when they witnessed their owner yawn than when they witnessed a stranger yawn. This suggests that contagious yawning in dogs is tied to empathy and social bonding — not just automatic mimicry.

So if you yawn and your dog yawns back, it may genuinely be a small sign of emotional attunement. It's one of several findings suggesting dogs are unusually tuned in to human emotional states — far more than we used to give them credit for.

Yes, Sometimes They're Just Tired

Not every yawn is a loaded emotional signal. Dogs yawn when waking up, after naps, and in the wind-down minutes before they fall asleep — exactly like we do. If your dog is yawning in the evening after a long walk, curled up in their favourite spot, you can probably take that one at face value.

Context is the whole game. A yawn in a relaxed, familiar environment usually just means sleepy. A yawn in a novel or charged situation is more likely a calming signal.

Reading the Full Picture: What to Watch Alongside the Yawn

A single signal never tells the whole story. When you see your dog yawn, check in with the rest of their body:

When multiple signals stack, the message becomes clearer. One yawn with a loose body is probably nothing. A yawn plus lip lick plus pinned ears plus turning away means your dog needs relief from whatever is happening around them.

How to Respond When Your Dog Yawns as a Calming Signal

The best response is to acknowledge it. You can actually yawn back — it signals empathy in the same language your dog uses. More practically, try to identify and reduce whatever is causing the stress. If you're at the vet, keep your voice soft and give your dog time to sniff and settle before asking them to do something. If you're introducing them to someone new, give everyone more space and time.

Never scold or punish a dog who is displaying calming signals. They're communicating as clearly as they know how, and punishing that communication teaches them to suppress it — which means they'll skip the early warning signs and go straight to a growl or a snap.

The Bigger Picture: Every Signal Is a Conversation

Yawning is just one word in a rich language dogs use all the time. The more fluent you become in reading these signals — alongside tail position, ear angle, eye softness, and body posture — the better you can respond to what your dog is actually telling you. And the better they feel heard, the calmer and more connected they become.