Why is my dog panting so much?
Panting is a normal way for dogs to cool down, and heavier panting after exercise, in warm weather, or during excitement is nothing to worry about. Sudden, heavy or prolonged panting with no obvious trigger is different, and can be a sign of overheating, pain, anxiety or an underlying health condition, so ring your vet if it does not have a clear, ordinary explanation.
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.
What normal panting looks like
Dogs do not sweat the way people do, and panting is their main way of regulating body temperature, so it is completely normal after a walk, a play session, or on a warm day. It usually settles within a reasonable time once your dog has cooled down and rested. The moisture on a panting tongue and the airflow it creates over the mouth and throat are doing the job a person's sweat glands would.
The context matters as much as the panting itself. A dog panting heavily straight after a run in the park, and back to breathing normally within twenty minutes or so of resting in the shade, is behaving exactly as expected. Excitement — visitors arriving, a favourite toy appearing, the lead coming out — can produce a short burst of heavier panting too, purely from the emotional response rather than any physical exertion.
When it points to overheating
Heavy, rapid panting that does not settle with rest, especially in warm weather, alongside bright red gums, drooling, weakness or disorientation, can be a sign of heatstroke, which is a genuine emergency. Flat-faced breeds are particularly vulnerable to overheating and can struggle to cool themselves effectively even in moderate warmth, since their shortened airways make panting a less efficient cooling method to begin with.
Move a dog you suspect is overheating somewhere cool and shaded straight away, offer small amounts of water, and ring your vet or an emergency service immediately rather than waiting to see if they recover on their own. Heatstroke can progress quickly and is not something to manage at home. A dog left in a hot car, even briefly, should always be treated as a potential emergency given how fast the temperature inside one can climb.
Other causes worth knowing
Pain and discomfort can cause a dog to pant more than usual even without obvious exertion, since panting is one of the ways dogs express physical distress. Anxiety and stress — during fireworks, travel, or a vet visit — commonly cause heavier panting too, and this usually settles once the trigger passes. A dog who paces or paws at themselves while panting is more likely showing discomfort than simply being warm.
Certain medications and some underlying health conditions can also cause increased panting as a side effect or symptom, which is why sudden, unexplained heavy panting in an older dog or a dog on medication is worth mentioning to your vet rather than assuming it is simply the heat. Weight also plays a part — an overweight dog works harder to regulate their temperature and often pants more readily than a dog of a healthy weight doing the same activity.
What can help
A cooling mat or a well-ventilated space to rest in on warm days genuinely helps a dog regulate their temperature more easily, and fresh water should always be available, particularly after exercise or in hot weather. Avoiding exercise during the hottest part of the day is a sensible precaution for any dog, but especially for flat-faced or older breeds. A cooling vest or a damp towel can also help on a walk during warmer months if avoiding the heat entirely is not practical.
If anxiety is the likely trigger, a calm, familiar space and, where appropriate, a calming aid can help a dog settle faster. None of this replaces a vet visit for panting that is sudden, severe, or does not have an obvious everyday explanation. Keeping a simple note of when heavy panting happens, and what was going on beforehand, is genuinely useful information to bring along if a pattern does need investigating properly.
What can help
Things we stock that owners commonly use alongside a vet’s advice — not a substitute for it.
Dog Calming Ear Muffs For Fireworks & Thunder
A soft stretchy snood that wraps snugly over your dog's head and ears to muffle fireworks, thunder and loud noises. Helps nervous dogs feel calmer during storms, travel and grooming.
£11.99
Pressure-Activated Pet Cooling Mat
Press down, feel the cool — this pressure-activated mat absorbs body heat and stays up to 10°C cooler than the room, with no freezing required.
From£34.99
Ice-Silk Cooling Pad for Pets
A breathable, anti-slip ice-silk cooling mat that keeps cats and dogs comfortable on hot days, no freezing required. It rolls up neatly for travel and the cool-touch surface helps reduce overheating at home or in the car.
From£8.99
Oval Bolstered Nest Pet Bed
A deep oval nest bed with high ribbed-plush bolster walls that cradle pets for a sense of security. The soft cushioned base offers a warm, supportive spot to curl up and sleep.
From£28.99
Common questions
- How much panting is normal for a dog?
- Panting after exercise, excitement or in warm weather is normal and should settle within a reasonable time once your dog has cooled down and rested. Panting that is sudden, heavy, or does not settle with rest is a different picture and worth checking.
- What are the signs of heatstroke in dogs?
- Heavy panting that does not settle, bright red gums, drooling, weakness, and disorientation are common signs, and this is a genuine emergency rather than something to wait out. Move your dog somewhere cool and ring your vet or an emergency service immediately.
- Can anxiety make a dog pant more?
- Yes, stress and anxiety are common causes of heavier panting, particularly during fireworks, travel, or visits to unfamiliar places. This usually settles once the trigger has passed, but persistent or severe anxiety-related panting is worth discussing with your vet.
- Which dogs are most at risk of overheating?
- Flat-faced breeds struggle to cool themselves effectively even in moderate warmth and are at higher risk of heatstroke, as are older dogs, overweight dogs, and those with existing heart or breathing conditions. Extra caution in warm weather matters more for these dogs than for a fit, young dog of an average build.
- Does panting mean my dog is in pain?
- Not necessarily, since panting has several normal explanations, but pain is one of the possibilities alongside heat and anxiety. If panting appears alongside other signs such as pacing, reluctance to move, or a change in posture, it is worth having your dog checked rather than assuming it is only the temperature.
Related
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.