Heatstroke in dogs is one of the most common veterinary emergencies once summer bites, and it can turn fatal within minutes. Unlike people, dogs barely sweat: they regulate their temperature by panting, so in a very hot environment they overheat easily. Knowing the symptoms of heatstroke in dogs and reacting in time makes the difference between a scare and a tragedy. In this practical guide we explain what it is, how to spot it, what to do and, above all, how to avoid heatstroke in dogs during the hottest months.
What heatstroke in dogs is and why it happens
We talk about heatstroke when the animal's body temperature goes above 40 °C and its body can no longer cool itself down. Panting, its main cooling mechanism, stops being enough and the organs begin to suffer. It can happen in a car parked in the sun (a deadly trap even with the windows cracked open), during a midday walk, after intense exercise in the heat or simply on a terrace with no shade and no water.
Some dogs are at greater risk: flat-faced breeds (bulldog, pug, boxer), puppies and older dogs, those who are overweight, have a very dense coat or a heart or respiratory condition. With them, you need to be doubly vigilant.
Do not confuse simply feeling hot with an emergency. Many owners ask how long heatstroke lasts: the reality is that it does not resolve itself. If the dog does not cool down within a few minutes, the temperature keeps climbing and the picture worsens, which is why acting fast and getting to the vet are non-negotiable, even if the animal seems to be improving.
Symptoms of heatstroke in dogs
The symptoms of heatstroke in dogs come on fast and get worse if we do nothing. Watch out for these signs:
- Exaggerated panting and very rapid breathing.
- Thick, heavy drooling.
- Very red tongue and gums or, in severe cases, a purplish colour.
- Weakness, staggering or difficulty staying on their feet.
- Apathy, disorientation or a vacant stare.
- Vomiting or diarrhoea, sometimes with blood.
- Trembling, seizures or loss of consciousness in advanced stages.
If you spot several of these signs, treat it as an emergency and act immediately: every minute counts.
What to do if my dog has heatstroke
The question every owner asks is what to do if my dog has heatstroke. The aim is to bring their temperature down gradually while you head to the vet. Follow these steps:
- Move them into the shade or somewhere cool and well ventilated, as soon as possible.
- Wet them with cool water (not ice cold) on paws, groin, armpits, neck and belly. Very cold water causes a shock and constricts the blood vessels, which actually makes cooling harder.
- Offer them water to drink, but without forcing them or making them swallow.
- Create some airflow with a fan.
- Call the vet and go straight there, even if they seem to be recovering: internal damage can keep progressing hours later.
Never plunge the dog into very cold water all at once and do not wrap them tightly in wet towels, because those trap the heat. The temperature must come down in a controlled way.
How to avoid heatstroke in dogs
Prevention is far easier than cure. These simple measures cut the risk enormously and help you work out how to avoid heatstroke in dogs day to day:
- Never leave your dog alone in the car, not for a minute.
- Walk first thing in the morning and at dusk, avoiding the middle of the day.
- Test the tarmac with your hand: if it burns you, it burns their paw pads.
- Always have fresh water available and take it with you on walks.
- Give them shaded spots and cool floors to lie on at home.
- A cooling mat or bed and a convenient water bowl help keep them stable on the hottest days.
In our selection of pet products you will find bowls, accessories and extras designed for your dog's wellbeing through the summer.
Conclusion
Heatstroke in dogs is serious, but almost always avoidable. Learn to recognise the symptoms, act without losing a moment if they appear and, above all, get ahead of the problem with summer habits and the right kit at home. Your dog cannot ask for help in words: you are the one who has to think ahead. Take a look at our products for the home and for pets and get ready to make these hot months safe for the whole family.