As a practising veterinary surgeon at Juno Pets, I am frequently asked about subtle changes in dog behaviour.
One of the most common yet misunderstood queries I receive from owners involves two specific actions: dog licking lips and yawning.
While we often associate yawning with tiredness and lip licking with tasty food, these actions can mean something entirely different in a social context.
I am Dr Rebecca Massie MRCVS, and in my clinic I often see these behaviours right before a consultation begins. These are not random acts, but often sophisticated forms of communication.
Understanding these signals is crucial for any owner wanting to truly understand their dog's emotional state and canine behaviour.
What do lip licking and yawning actually mean?
When a dog licks their lips or yawns out of context - meaning there is no food present and they have not just woken up or become tired - it is usually a displacement behaviour or an appeasement signal. These are self-soothing actions designed to diffuse tension.
- Conflict Avoidance: The dog is trying to signal they mean no harm.
- Self-Soothing: The action may help lower their own stress levels.
- Communication: They are asking for space or a change in the interaction.
- Anticipation: It can occur during periods of uncertainty or waiting.
In the veterinary consulting room, I look for these signs constantly. If a dog offers a quick tongue flick against their nose or a wide yawn while I am examining them, they are politely telling me they are uncomfortable. Ignoring these early whispers of stress can sometimes lead to the dog feeling they need to shout later by growling or snapping.
Key Takeaway: Lip licking and yawning are often non-verbal requests for space or reassurance rather than signs of hunger or sleepiness.
Is my dog tired or is it anxiety?
Context is everything when interpreting dog stress signals. If your dog curls up in their bed at 10 pm and yawns, they are probably tired. However, if you are hugging your dog, training them, or introducing them to a stranger, and they begin yawning repeatedly, this is more likely to be a sign of social pressure.
I often explain to clients that a stress yawn can look slightly different from a tired yawn. It is often more intense and may be accompanied by a whining sound or a shake-off immediately afterwards. Similarly, stress licking is usually a quick flick of the tongue upwards towards the nose, rather than a slow lick around the chops.
Understanding the difference helps prevent us from pushing our dogs past their coping threshold. If we misinterpret these signals as boredom or submission, we may miss an opportunity to help our dogs feel safe.
Key Takeaway: Always look at the environment; if nothing sleep-inducing is happening, a yawn may be a sign of emotional conflict or anxiety.
Vet’s Insight: The "Guilty" Look
I vividly remember a case involving a Labrador named Barnaby. His owners were convinced he felt guilty when they found chewed slippers because he would cower, lick his lips repeatedly, and yawn.
I had to gently explain that Barnaby wasn't feeling moral guilt. He was reacting to their angry body language with appeasement gestures. He was saying, "I see you are angry, please don't hurt me." Once the owners understood this was fear, not guilt, we could address the separation anxiety causing the chewing in the first place.
How does the gut-brain axis influence stress behaviours?
You might be surprised to learn that frequent stress signals may also be influenced by your dog's internal health. There is a recognised link between the gut and the brain, often referred to as the gut-brain axis. A balanced microbiome may help support normal neurotransmitter function and emotional resilience.
When clients ask me for the best way to support a nervous dog, I tell them to look beyond training alone. Many popular supplements on the UK market are incomplete, offering only a single calming ingredient. In my clinical experience, that single-ingredient approach does not reflect the full complexity of dog gut health and mood.
This is precisely why I formulated the Juno vet-developed all-in-one supplement to provide broader support. It includes targeted ingredients to support the gut-brain connection, helping dogs maintain calmer, more resilient day-to-day wellbeing. That said, supplements are not a cure, and they tend to work best alongside training and environmental support.
Key Takeaway: Supporting your dog's gut health may help support their resilience to stress, especially when combined with good behavioural management.
Could pain be the underlying cause of these signals?
Sometimes, lip licking and yawning are not about social anxiety at all, but physical discomfort. Chronic low-level pain acts as a constant stressor, lowering a dog's patience and increasing their reliance on self-soothing behaviours.
I frequently treat older dogs who have become grumpy or anxious. Often, they are suffering from undiagnosed mobility issues. If you notice your dog licking their lips when they stand up or yawning after exercise, it is worth investigating further. You should check for other signs of arthritis in dogs.
By managing the pain, we often see the anxiety-related behaviours ease. It is vital to rule out medical causes before assuming a behaviour is purely psychological.
Key Takeaway: Persistent stress signals in older dogs, or after activity, can sometimes indicate hidden physical pain.
What are other common appeasement gestures?
Lip licking and yawning rarely happen in isolation. They are part of a broader ladder of communication. Recognising the accompanying signals can help you build a clearer picture of how your dog is feeling.
Other common dog appeasement gestures include looking away, moving slowly, lifting one paw, or sniffing the ground unexpectedly. These are all polite ways dogs try to de-escalate a situation without aggression, and they are an important part of understanding behaviour.
For example, if you ask your dog to sit and they look away and lick their lips, they are not necessarily being stubborn. They may be confused or feeling too much pressure from your tone of voice.
Key Takeaway: Look for clusters of behaviour; a yawn combined with looking away is often a clear message that your dog needs space.
When should I seek professional help?
While occasional displacement behaviours are normal, a dog that is constantly licking their lips or yawning may be struggling with chronic anxiety. If these behaviours interfere with daily life, or if they escalate to growling, professional support is needed.
I recommend consulting a qualified behaviourist if you cannot identify the trigger. Additionally, for dogs prone to general nervousness, looking at their diet and supplementation can be a helpful first step. Ensuring they have the right probiotics for anxiety support may make a meaningful difference to their baseline stress levels.
In more severe cases, these signals can be early signs of separation anxiety or noise phobias. Catching them early, when they are still whispers, is far easier than treating established fears.
Key Takeaway: Frequent stress signals can indicate that a dog is struggling to cope and may warrant a veterinary check-up or behavioural assessment.
Why does my dog lick the air when I scratch him?
This is often a reflex rather than a stress signal. If you find a sweet spot, usually on the back or side, your dog may involuntarily lick the air or kick their leg. This is generally a sign of enjoyment or an itch being scratched, and is quite different from the nervous lip flick seen with anxiety.
Do dogs yawn when they are happy?
Dogs can yawn when they are excited or anticipating something good, like a walk. This is still a form of arousal or positive stress. However, a relaxed, happy dog usually has a soft mouth and loose body language, unlike the tenser posture often seen with stress yawns.
Why does my dog lick his lips before bed?
If your dog licks their lips extensively before sleep, it could be a sign of nausea or acid reflux, especially if they also swallow repeatedly. It is worth reading my guide on sensitive stomachs in dogs to see whether diet could be a factor.
Is yawning contagious to dogs?
Yes, studies suggest that yawning can be contagious between dogs and humans. Some research suggests this may be linked to social attention or empathy. If you yawn and your dog yawns back, it may simply mean they are paying close attention to your cues.
What does it mean if my dog licks my face excessively?
Face licking is often an appeasement gesture derived from puppy behaviour. It can be a sign of affection, but if it is frantic or excessive, it may mean your dog is seeking reassurance or gathering information from your scent.
Can dental problems cause lip licking?
Absolutely. If a dog has a loose tooth, gum disease, or something stuck in their mouth, they will often lick their lips and move their jaw oddly. If the behaviour appears suddenly, I always recommend a dental check-up.
Why does my dog yawn when I hug him?
Most dogs do not naturally enjoy being hugged, as it restricts their movement. A yawn during a hug is a classic stress signal asking you to stop. It is usually safer to show affection in ways dogs prefer, such as chest scratches or gentle strokes.
Do puppies yawn more than adult dogs?
Puppies may yawn frequently as they encounter many new and potentially overwhelming stimuli. They are learning to process the world. Proper socialisation and supportive puppy care can help them build confidence over time.
How can I calm my dog down if they are stress yawning?
Remove the stressor if possible. If you are training, stop and take a break. You can also soften your body language, slow things down, and give your dog more space. The goal is to lower pressure, not force them through it.
Does diet affect my dog's anxiety levels?
Diet can influence overall well-being, including gut health, which in turn may affect emotional resilience. I generally recommend a high-quality diet supported by the Juno vet-developed all-in-one supplement where appropriate, so your dog has broader daily nutritional support. As always, it works best as part of a wider plan rather than as a standalone fix.
Disclaimer: This article is for educational purposes only and does not constitute veterinary advice. If you are concerned about your dog’s health or behaviour, please consult your veterinary surgeon.
Support Your Dog's Calmness Naturally
Anxiety and stress may be influenced by what is happening in the gut. I formulated Juno Daily to provide the broader daily support many dogs need.
