Why UK dogs are dying of heatstroke
The Royal Veterinary College's VetCompass study (2020, updated 2023) showed that 14% of UK dog heatstroke cases are fatal. The 2022 heatwave caused a record spike. Most cases happen below 25 °C — owners underestimate humidity and exercise intensity.
Highest-risk dogs
- Brachycephalic breeds: French Bulldog, English Bulldog, Pug, Boxer. Risk starts at 22 °C.
- Heavy-coated breeds: Husky, Samoyed, Bernese Mountain Dog.
- Older dogs (8+) and puppies (under 4 months).
- Overweight or cardiac-disease dogs.
Early signs (act NOW)
- Heavy panting, bright red or bluish tongue.
- Thick, foamy drool.
- Restlessness, desperate shade-seeking.
- Bright red gums.
Advanced signs (emergency)
- Vomiting or bloody diarrhoea.
- Unsteady gait, confusion.
- Seizures.
- Collapse, unconsciousness.
First aid — the first 10 minutes
- Get out of the heat now: shade, AC indoors, car with the AC on full.
- Cool with cool (not ice-cold) water. The RVC's 2023 update emphasises this: tepid-to-cool water immediately, all over the body. The old advice to avoid cooling has been reversed.
- Wet belly, armpits, groin, paws, ears — biggest blood vessels are there.
- Fan them while wet — evaporation does most of the cooling.
- Small sips of water if conscious. Don't force it.
- Vet immediately. Even if they look fine — organ damage (liver, kidney, clotting) often shows up 24-48 hours later.
What NOT to do
- Don't pour ice or ice water on them. Cool water yes, ice no.
- Don't drape wet towels and leave them — they trap heat.
- Don't give human painkillers (paracetamol is toxic to dogs).
- Don't put them in the pool unconscious — drowning risk.
Prevention
- Walk at dawn and dusk in summer. Pavement test: hold the back of your hand on the tarmac for 5 seconds. If you can't, it'll burn paws.
- Water always available. Collapsible bowl in every bag.
- NEVER in a parked car. At 22 °C outside, the interior hits 35 °C in 10 minutes. RSPCA logs hundreds of cases each year. It is an offence under the Animal Welfare Act 2006.
- Cooling vest or mat for brachycephalic dogs. They work by evaporation, not refrigeration.
- Keep weight in check — overweight dogs heat up faster.
When to call the emergency vet
Any heatstroke episode requires a vet visit, even if the dog recovers. Out of hours: most UK areas have 24/7 emergency clinics (Vets Now, BluePearl). Cost £150-300 for the visit, £500-1,500 for hospitalisation.
How CanAI helps
Ask the AI chat for instant triage when you're not sure if it's heatstroke. Track temperature warnings and emergency vets near you in CanAI's health section. And one heatstroke hospitalisation costs more than three years of decent pet insurance — worth considering.