Panting is one of those things that's completely normal right up until it isn't, and knowing the difference is what keeps a dog safe. The short answer is this: most panting is your dog simply cooling down after warmth, exercise or excitement, and it settles once they've had a rest and a drink. But panting that happens for no obvious reason, won't stop, or comes with other worrying signs deserves a proper look and often a call to the vet.
Dogs don't sweat the way we do. They cool themselves mostly by panting, moving air over a wet tongue to lose heat. So a bit of huffing on a warm day or after a good run is exactly what should happen. Below I'll walk through what's normal, what isn't, and the red flags that mean act now.
Normal panting: nothing to worry about
In most cases, panting is just your dog's built-in air conditioning doing its job. It's completely normal when your dog is:
- Warm: cooling down on a hot day or in a stuffy room
- Exercising or just has: after a walk, a play session or a run about the garden
- Excited or happy: before a walk, meeting people, or during a fuss
- Mildly nervous: a short bout in a new or busy situation
The tell-tale sign that it's normal: it eases off once your dog rests somewhere cool with water. Their gums stay a healthy pink and they seem otherwise like themselves.
Heatstroke: this is an emergency
If there's one part of this post to remember, it's this. Heavy panting on a hot day, or after exercise in warm weather, can tip into heatstroke, which is life-threatening and needs action within minutes.
Warning signs include frantic, heavy panting that won't slow, thick drool, bright red or dark gums, wobbliness, vomiting, glazed eyes or collapse. If you see these:
- Move your dog somewhere cool and shaded straight away
- Offer small amounts of cool (not ice-cold) water
- Wet their coat with cool water, especially belly, armpits and paws, and keep air moving over them
- Ring your vet immediately and head there. Heatstroke can worsen fast even after you've started cooling them
Please don't: Never leave a dog in a parked car, even for "just a minute" and even with the windows cracked. Cars become ovens frighteningly quickly. And on hot days, walk in the cool of early morning or late evening, not the midday heat. Flat-faced breeds are especially at risk.
Flat-faced (brachycephalic) breeds
Pugs, French Bulldogs, Bulldogs, Boxers and similar breeds pant more and struggle more in the heat because their squashed airways make cooling harder. Thick, double-coated dogs feel the heat too, which is one reason a well-managed coat matters in summer; our guide to reducing shedding and a lighter coat explains how a deshed helps. Noisy breathing and quicker panting can be normal for them, but it also means they overheat far more easily, so they need extra care in warm weather and shouldn't be pushed on hot-day walks.
When panting means something is wrong
Panting that isn't explained by heat, exercise or excitement can be a sign of a problem. Common causes include:
- Pain: dogs often pant when they're hurting, sometimes with no other obvious sign
- Stress or anxiety: fireworks, thunderstorms, car trips or vet visits; usually with pacing, whining or trembling
- Heart or respiratory problems, where the body isn't moving oxygen efficiently
- Medication: some drugs, particularly steroids, can cause increased panting; ask your vet if you've noticed it since a new prescription
- Illness or fever: panting alongside feeling generally unwell
The theme here is context. Panting with a clear cause that settles is fine. Panting without a reason, especially at rest, is your dog telling you something.
Vet note: This is general guidance, not veterinary advice. If your dog is panting heavily at rest, seems distressed, or you're worried at all, contact your own vet, they can examine your dog properly and rule out anything serious.
Red flags: call your vet
Get in touch with your vet, or an out-of-hours emergency vet, if you notice:
- Panting at rest or when it's cool, for no clear reason
- Blue, purple, pale or very dark gums (this is an emergency)
- Panting that comes on suddenly or won't stop
- Signs of distress, collapse, weakness or a swollen belly
- Panting alongside coughing, retching, or a change in the sound of their breathing
Trust your instinct. You know your dog's normal better than anyone, and it's always better to make the call and be reassured.
Frequently asked questions
Why is my dog panting so much when it's not hot?
Panting without heat, exercise or excitement can signal pain, stress, a heart or breathing problem, or a reaction to medication like steroids. If it happens at rest or won't settle, contact your vet.
When should I be worried about my dog panting?
Worry if your dog pants at rest, seems distressed, has pale, blue or very dark gums, collapses, or the panting is sudden and unexplained. These need a vet, urgently in the case of gum colour changes or collapse.
Is it normal for my dog to pant a lot after a walk?
Yes. Panting after exercise is completely normal as your dog cools down. It should ease within a few minutes of rest, cool air and a drink of water.
Can anxiety cause a dog to pant?
Yes. Stress and anxiety, from fireworks, storms, car journeys or new situations, commonly cause panting, usually alongside pacing, whining or trembling. It should settle once your dog feels safe again.
Fluffs is a professional dog grooming salon in Wigginton, York, offering one-to-one grooming for dogs of every breed and coat type across Haxby, Strensall, Huntington, New Earswick and the surrounding villages. We keep every groom calm and comfortable, and take extra care to keep dogs cool and settled throughout their visit. For heavy-coated dogs, our Wash, Dry and Deshed treatment lifts out dead undercoat and helps them stay cooler. Book a relaxed, unhurried groom.