Is it normal for dogs to lick their lips a lot?

Occasional lip licking is normal, particularly around food or in mildly unfamiliar situations. It becomes worth paying attention to when it is frequent, has no obvious trigger, or comes with other signs like drooling, reduced appetite or a change in behaviour.

Can stress make a dog lick their lips?

Yes, lip licking is a recognised calming signal dogs use in situations they find mildly uncomfortable, such as meeting an unfamiliar dog or being in a new place. It is usually brief and settles once the situation changes, rather than being a constant behaviour.

Does lip licking always mean a dog feels sick?

No, though it is one common cause, especially alongside drooling or swallowing. Dental discomfort, anticipation of food and mild stress can all look similar from the outside, which is why the pattern and any other symptoms matter more than the licking on its own.

Should I take my dog to the vet for licking their lips?

If it is frequent, has no obvious cause, or comes with drooling, vomiting, reduced appetite or signs of dental discomfort such as bad breath, yes — ring your vet and describe what you have noticed. An occasional brief episode in an otherwise well dog is usually nothing to worry about.

Can teething cause a puppy to lick their lips?

Yes, a teething puppy can show more lip licking and chewing behaviour than usual as their gums are uncomfortable. If it is accompanied by drooling, reluctance to eat, or seems to be causing real distress, it is still worth mentioning to your vet rather than assuming it is teething on its own.

Why does my dog keep licking their lips?

A dog licking their lips is usually nothing serious — it is a common way for dogs to show mild nausea, dental discomfort, anticipation of food, or stress. It is worth a vet visit when it is frequent, comes with other signs like drooling or a lost appetite, or appears suddenly alongside behaviour that is not like your dog.

Usually not urgent

This is common and often manageable at home — but see a vet if it persists, gets worse, or comes with other changes.

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The common, harmless reasons

Plenty of lip licking is simply anticipation — a dog who licks their lips when food is being prepared, or when they can smell something being cooked, is doing exactly what it looks like. This kind is usually brief, happens in an obvious context, and stops once the moment has passed.

It can also be a calming signal, a way dogs communicate mild unease in a social situation — being approached by an unfamiliar dog or person, or finding themselves somewhere new. Alongside a slightly lowered head or turned-away gaze, this is a dog telling you or another animal that they would rather not be pushed further, rather than a sign of anything medically wrong.

When it points to nausea

Repeated lip licking combined with swallowing, drooling, or a dog who seems reluctant to eat is a classic pattern for mild nausea. It can follow eating something disagreeable, travelling in the car, or be an early sign of a stomach upset that has not fully shown itself yet.

If the licking is accompanied by your dog eating grass more than usual, or by an episode of being sick, treat those together as one picture rather than separate events. A single mild episode that settles within a day is common; anything that persists or worsens is worth mentioning to your vet.

Dental pain and other physical causes

Mouth and dental discomfort is a common but easily missed cause, especially in older dogs. A sore tooth, gum disease, or something caught between the teeth can all lead to repeated licking as a dog tries to deal with the discomfort themselves.

Look for other signs alongside the licking — bad breath, pawing at the mouth, reluctance to eat hard food or chew on one side, or visible redness around the gums. These point more clearly towards the mouth than towards the stomach or anxiety.

What might genuinely help

If the pattern points towards mild, occasional nausea rather than anything more serious, a diet formulated for sensitive digestion, fed in smaller and more frequent meals, is a reasonable thing to try alongside your vet's advice rather than instead of it. A slow feeder can also help a dog who eats quickly and seems to feel unsettled afterwards.

Where stress or a calming signal seems to be the more likely explanation, particularly around new people, dogs or situations, working on gradual, positive exposure to whatever is triggering it tends to help more than trying to stop the licking itself. Calming aids can support this alongside training, but they work best as one part of a wider approach rather than a fix on their own.

If dental discomfort looks like the cause, do not attempt to investigate your dog's mouth for anything beyond an obvious, visible problem, and avoid giving very hard chews until a vet has had a proper look — a sore mouth and a hard chew are not a good combination.

When to see a vet

Ring your vet if the lip licking is frequent and does not have an obvious trigger, if it comes with vomiting, drooling, weight loss, or a change in appetite, or if you notice signs of dental discomfort such as bad breath or difficulty eating. A vet can examine the mouth and rule out or confirm a dental cause properly, which is not something to try to judge from home.

A single, brief bout with no other symptoms in an otherwise well dog is rarely anything to worry about. The pattern over days matters far more than one isolated moment, so keep half an eye on how often it happens and what else comes with it.

Keeping a brief note of when the licking happens, what else your dog was doing at the time, and anything else you notice alongside it makes a real difference if you do end up describing it to a vet. A pattern that is hard to put into words in the moment often becomes obvious once it is written down over a few days.

What can help

Things we stock that owners commonly use alongside a vet’s advice — not a substitute for it.

Fast UK delivery

NanoSanitas Advanced No-Brush Dental Gel for Dogs & Cats

A brush-free dental gel for dogs and cats, formulated with silver nanoparticles and papaya extract to help reduce plaque and freshen breath.

£14.99

James Wellbeloved Adult Breed Dry Dog Food Turkey Rice

A hypoallergenic dry food for adult dogs, in small and large breed versions, built around single-source turkey protein

From£45.75

Choose options

James Wellbeloved Adult Dry Dog Food Turkey Rice

A hypoallergenic dry food for adult dogs, built around a single source of turkey protein

From£41.45

Choose options

Johnson's Calm Eze Tabs

36 herbal tablets to help calm and soothe nervous or hyperactive dogs and cats

£6.05

Common questions

Is it normal for dogs to lick their lips a lot?: Occasional lip licking is normal, particularly around food or in mildly unfamiliar situations. It becomes worth paying attention to when it is frequent, has no obvious trigger, or comes with other signs like drooling, reduced appetite or a change in behaviour.
Can stress make a dog lick their lips?: Yes, lip licking is a recognised calming signal dogs use in situations they find mildly uncomfortable, such as meeting an unfamiliar dog or being in a new place. It is usually brief and settles once the situation changes, rather than being a constant behaviour.
Does lip licking always mean a dog feels sick?: No, though it is one common cause, especially alongside drooling or swallowing. Dental discomfort, anticipation of food and mild stress can all look similar from the outside, which is why the pattern and any other symptoms matter more than the licking on its own.
Should I take my dog to the vet for licking their lips?: If it is frequent, has no obvious cause, or comes with drooling, vomiting, reduced appetite or signs of dental discomfort such as bad breath, yes — ring your vet and describe what you have noticed. An occasional brief episode in an otherwise well dog is usually nothing to worry about.
Can teething cause a puppy to lick their lips?: Yes, a teething puppy can show more lip licking and chewing behaviour than usual as their gums are uncomfortable. If it is accompanied by drooling, reluctance to eat, or seems to be causing real distress, it is still worth mentioning to your vet rather than assuming it is teething on its own.

Sources

Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.

Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.