Heat Stroke in Dogs: What Every Pet Owner Should Know

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As nearly any dog owner will agree, enjoying the great outdoors with your four-legged friend during the warmer months is one of life’s simple pleasures – from frolicking in the lawn sprinkler to fun-filled days at the park, making summertime memories with your beloved pooch is one of the great pleasures of being a pet parent.

However, it’s important to remember to use precautionary measures when you’re spending any length of time in the sun, especially on very hot days. Heat stroke in dogs is a very real condition, so knowing the signs and symptoms and educating yourself is essential to your furry friend’s health.

This article will review some simple steps you can take to protect your canine companion from the complications of heat stroke and how to identify if he’s overheating.

Did You Know…

Certain dog breeds are more prone to heat stroke, so be extra careful if you happen to have a brachycephalic breed – this terminology pertains to dogs that have a relatively short, broad skull. Such breeds include the Pekingese, Bulldogs, Boston Terriers, Pugs, Boxers, Cavalier King Charles Spaniels, and Shih Tzus, which are particularly sensitive to the extreme heat, since the shape of their skull (consequently affecting the sinuses) leads to respiratory distress.

Due to their normally diminished ability to take in oxygen as they breathe, high temperatures and bright sun can be dangerous for these breeds, as they can overheat quite easily.

Canine Heat Stroke: Identifying The Signs

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Although the vast majority of dog breeds have some form of hair or fur that protects them against the colder temps, it often poses a problem for our pets in hot weather, especially for long-haired breeds. Also known as hyperthermia, heat exhaustion (or heat stroke, as it is most commonly referred to) is a dangerous but highly preventable condition.

As you may already know, dogs, unlike humans, eliminate heat primarily by panting and through the pads on their paws, not through sweat glands. Therefore, they are much more apt to overheat on a hot sunny day, since they also have a higher core body temperature and are unable to cool off easily.

Symptoms of heat stroke in your dog may include:

  • Heavy panting
  • Increased salivation/excessive drooling
  • Signs of dehydration
  • Increased body temperature (above 103˚ F)
  • A reddened or pale appearance of the gums and moist tissues of the body
  • Bright red tongue
  • Bloodshot eyes
  • Thick, sticky-looking saliva
  • Production of only small amounts of urine/no urine
  • Rapid heart rate
  • Dizziness
  • Weakness and/or lethargy
  • Depression
  • Vomiting blood
  • Diarrhea

As heatstroke progresses in your dog, it can lead to seizures, coma, sudden (acute) kidney failure, cardiac arrest, and death.

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Did You Know…

Because the majority of cases go unreported, there are no statistics on how many dogs tragically die every year from heat exhaustion. Your fur baby can suffer permanent damage (or even death) very quickly if left in a parked car on a hot day or kept outdoors without adequate shelter and defense from the sun.

Losing your pet to a heat-related death is totally preventable – never leave your dog in a parked vehicle for any amount of time, even if the windows are down and you’re in the shade. If you have an outdoor dog (or your pooch is spending more than a few minutes outside on a very hot sunny day), be sure to provide some form of shady area, such as a doghouse, umbrella, or other spot where he can get some relief and protection from the sun’s strong rays.

Prevention: How to Protect Your Dog From Heat Exhaustion

As is the case in nearly any situation, knowing is half the battle – learning how to prevent your dog from experiencing a heat stroke is simple once you understand the appropriate measures to follow during the height of summer. Using good old-fashioned common sense is one of the most effective ways to ensure your dog won’t suffer the complications of canine hyperthermia.

Here are a few helpful tips to prevent your beloved pooch from heatstroke:


Keep Water On Hand: Yes, it may seem obvious, but providing your pup with plenty of water at all times is one of the easiest ways to safeguard him from dehydration and heat exhaustion. Be sure to carry cool bottled water and a collapsible bowl during car trips, vacations and even walks around the neighborhood.

Provide Plenty Of Shade: For outside dogs, make sure they’ve got adequate protection from the sun – a doghouse, sun umbrella, overhang or other similar structure can make all the difference on a sweltering summer day.

Keep Him Cool: Moving your dog to a cool area in your home (preferably air-conditioned or in front of a fan) is a safe and easy way to prevent overheating. If you want to go one step further, freeze water in a clean, empty soda bottle, or place ice cubes in a Zip-lock baggie, then wrap in a tube sock, old t-shirt, or towel so your pet can lay on it. You can even throw a few large ice cubes in his water dish for added refreshment.

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Give Him a Towel-Down: Wetting down your pal with a cool, damp towel or even a spray mist bottle filled with water is a great way to keep his core body temperature at a healthy level. If you’re by a swimming pool, beach, lake or even a sprinkler, encourage a swim (be sure to watch him carefully for safety reasons, of course) to keep him cool and comfy.

Dogs with Health Issues Need Extra TLC: For dogs with preexisting health conditions (such as heart disease, diabetes, obesity, or respiratory issues) as well as older dogs, taking extra precautionary measures to protect them against the perils of heatstroke is crucial – even routine activities can be strenuous for them during the warmer temperatures.

Check The Weather: Before planning any outdoor activities with your buddy, check the weather forecast, including the temperature and humidity levels. In addition, touch the pavement to see how hot it is – remember, your dog’s foot pads are sensitive and can be easily burned on the smoldering concrete. You may want to purchase booties to protect your dog’s paws during walks, particularly if you live in an urban area where grassy areas are at a minimum.

If You See Something, Say Something: If you happen to see a dog locked in a car on a hot day and you believe he’s in imminent danger, write down the make and model of the car, the license plate and a description of the animal. If you’re at a mall or shopping center, see if you can track down security and have them page the owner of the car on the PA system. Time is of the essence, as every minute that passes increases the risk of fatality. If you are not immediately able to access help, call the police department or local animal control for assistance.

Travel Smart: When your dog’s along for the ride, be sure that he’s well-ventilated and safe – he should be securely situated in a wire kennel (suitable for medium to large-sized dogs) or a crate (for smaller dogs). Once he’s outdoors, always make sure your pooch has access to plenty of clean water and a cool, shady spot.


Leave Them in a Parked Car: This cannot be stressed enough – even if you’re parked in the shade or going into the store for a few minutes, your car’s temperature can soar up to 140 degrees if not air conditioned. Therefore, never leave your pets in a car unattended for any length of time.

Engage in Strenuous Exercise & Physical Activity: It’s important to limit your dog’s physical activity on excessively hot days, as it can be a danger to his health. Do not take him jogging with you, and watch for signs of heat exhaustion when your dog