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As temperatures climb, our furry friends are especially vulnerable to overheating. Heat stroke in pets is a serious—and often life-threatening—emergency that can happen quickly, even in seemingly mild weather.

At Cottage Vet Clinic, we see cases every summer that could have been prevented with a bit of awareness and early action. Here’s what you need to know to keep your pet safe.

What Is Heat Stroke?

Heat stroke (or heat exhaustion) occurs when a pet’s body temperature rises dangerously high—usually over 40°C. Dogs and cats don’t sweat like humans. They rely on panting, minimal sweating through their paws, and behavioural changes to cool down.

When these aren’t enough, their internal temperature soars, damaging organs, the brain, and sometimes leading to death within minutes if not treated.

Which Pets Are Most at Risk?

All pets are susceptible to heat stroke, but certain groups are at higher risk:

  • Brachycephalic breeds (flat-faced dogs and cats like Bulldogs, Pugs, Boxers, Persian cats)
  • Older pets or puppies/kittens
  • Overweight animals
  • Pets with heart or respiratory problems
  • Thick-coated breeds (e.g. Huskies, Malamutes)
  • Active dogs that love to play non-stop, even in the heat
  • Exotic animals like rabbits and chinchillas

Even healthy pets can overheat quickly in a hot car, on a walk, or when left in the sun.

Common Causes of Heat Stroke in Pets

  • Being left in a parked car, even for a few minutes
  • Exercise in hot or humid conditions
  • Lack of shade or water during outdoor time
  • Overexcitement or stress in warm weather
  • Indoor overheating in poorly ventilated rooms or during power outages

Signs of Heat Stroke in Pets

Act fast if you notice any of these signs:

  • Excessive panting or drooling
  • Red gums or tongue
  • Vomiting or diarrhoea
  • Wobbliness or collapse
  • Weakness or lethargy
  • Seizures
  • Rapid heartbeat
  • High rectal temperature (above 40°C)

If you see these signs, treat it as an emergency.

What to Do in an Emergency

  1. Move your pet to a cool, shaded area immediately
  2. Cool them down gradually:
    • Wet their fur with cool (not ice-cold) water
    • Use a fan or air-conditioner if possible
    • Offer small amounts of cool water if they are alert
  3. Contact us immediately – Even if your pet seems to recover, internal damage may continue. Prompt veterinary treatment is critical.

Never use ice water or ice packs—this can worsen the problem by constricting blood vessels.

Prevention Tips for Hot Days

  • Avoid walking dogs during the heat of the day—choose early morning or evening
  • Always provide access to fresh water and shade
  • Never leave pets in a parked car
  • Use cooling mats or fans for indoor pets
  • Limit exercise during hot spells
  • Keep pets indoors on extremely hot days

In Summary

Heat stroke in pets is fast, dangerous, and preventable. Know the signs, avoid risky situations, and always act quickly if you suspect overheating.

If you’re unsure whether your pet is coping with the heat, rather be safe and give us a call—we’re here to help keep your pet safe all summer long.