Heat Stroke in Dogs: What Is It and How to Treat It

Heat Stroke in Dogs: What Is It and How to Treat It

Published Date

Published Date

August 16, 2024

August 16, 2024

Last Updated

Last Updated

September 30, 2025

September 30, 2025

A veterinarian is checking a dog's condition after treating its heat stroke. Another vet is assisting.
A veterinarian is checking a dog's condition after treating its heat stroke. Another vet is assisting.
A veterinarian is checking a dog's condition after treating its heat stroke. Another vet is assisting.

Heat is an enemy that all dogs can face. While they don’t sweat, they cool themselves down by panting. When their body temperature rises excessively and they cannot cool down effectively, it can trigger a series of severe health problems, notably heat stroke.

Can Dogs Get Heat Stroke?

Yes, dogs can most certainly get heat stroke. A canine heat stroke is a life-threatening condition in which the dog’s body reaches dangerous levels. When this happens, panting doesn’t stand a chance. 

This results in potential problems in your dog’s organs, brain, and life. In fact, heat stroke in dogs is a condition that can occur at any time, especially in warmer climates or poorly ventilated environments.

In this blog, we’ll discover everything there is to know about heat stroke in dogs and how it is treated. 

What Causes Heat Stroke in Dogs?

Several factors can be the reason why dogs get heat strokes

High Temperatures

The most apparent cause of heat stroke is exposure to high environmental temperatures. Dogs are much more susceptible to heat stress because they have a limited ability to cool down.

When the air temperature increases, dogs can struggle to regulate their body temperature as they cannot sweat like humans.

On hot and humid days, the lack of breeze or adequate airflow can be too much. It will make it hard for dogs to cool down. 

Excessive Exercise

While exercise is vital for a dog’s health, excessive exercise during hot weather can be dangerous. Dogs having a good time in the heat of the sun can find themselves quickly overheating, especially if they do not take any breaks to cool down.

Dogs that are running, playing, or otherwise exerting themselves in the heat can quickly overheat, especially if they don’t take breaks to cool down. They are particularly at risk because they may not realize they are developing heatstroke until it’s too late.

Dogs with high energy, such as Border Collies, American Foxhounds, and Labrador Retrievers, are at higher risk during hot weather because they may push themselves too hard without taking breaks.

Lack of Shade and Hydration

Dogs left outside without adequate shade or access to drinking water are at high risk for heat stroke. A shaded area provides a cooler environment where dogs can escape direct sunlight, which can rapidly raise their body temperature. 

When dogs don’t have access to enough fresh water, their bodies can’t cool down effectively. Water is essential for normal circulation and helps regulate body temperature.

Poor Ventilation

Dogs that are confined in areas such as crates, small rooms, and poorly ventilated areas have a higher risk of getting heat stroke. Poor ventilation traps heat, causing temperatures to rise quickly. 

A common scenario is dogs being left inside cars while their owners are out. Even in mildly sunny days, the car can get hot quickly, especially because it’s enclosed. While many pet owners believe rolling down a window is enough, it’s not enough to provide adequate airflow.

Breeds and Physical Conditions

Some dogs are considerably more prone to heat stroke because of their physical features and genetics. 

  • Brachycephalic Breeds. Dogs that have flat faces, such as Shih Tzus and Cavalier King Charles Spaniels, are particularly susceptible to heat stroke. Their compact airways make it harder for them to pant effectively, reducing their ability to cool down.

  • Thick-Coated Breeds. Golden Retrievers and Chow Chows are also at higher risk because of their thick coats. Their coats, which are great for insulation in cold weather, can trap heat generated in the summer.

  • Obesity. Obesity brings in lots of problems for your dog, and heat stroke is one of them.  The added layers of fat can interfere with how a dog cools down, and they can place additional strain on the heart and respiratory system.

  • Age and Health Conditions. Puppies, older dogs, and dogs with health conditions are more vulnerable when it comes to heatstroke. This is because their bodies are either underdeveloped or compromised.

What Are the Symptoms of Heat Stroke in Dogs?

Two veterinarians are holding a dog upright to check for its physical condition.

If your dog is having a heat stroke, there will be specific signs you should take note of. 

  • Excessive Panting and Drooling. You might notice your dog panting faster and heavier. This can often be accompanied by excessive drooling.

  • Red or Pale Gums and Tongue. Normally, gums and tongue appear bright red. When a dog gets a heat stroke, they may turn pale or even blue, indicating a severe lack of oxygen.

  • Lethargy and Weakness. As heat stroke sets in, your dog may become noticeably lethargic. They may hesitate to move or play as they usually do.

  • Vomiting and Diarrhea. These are also possible symptoms of heat stroke in dogs. Sometimes, they may present blood.

  • Dizziness and Disorientation. Affected dogs can also appear dizzy, confused, and disoriented because their nervous systems are compromised.

  • Seizures or Tremors. When seizures and tremors start to happen, the heat stroke is at a dangerous level. Dogs with seizures should be taken to the clinic immediately.

  • Collapse. Some dogs with heat stroke may also collapse and faint, which is considered a severe symptom. This is a situation that requires emergency care.

How To Treat Heat Stroke in Dogs

If you notice any of the signs, then act quickly.

1. Move Your Dog to a Cool Area

If your dog is having a heat stroke, move them away from the heat. If possible, bring them to an air-conditioned room. If you can’t, look around and find a shady spot you can bring them to. 

2. Begin Cooling Your Dog Down

It's crucial to start cooling your dog down right away, but you must do so gradually to avoid shock. The most important step is to give your dog cool water and let them rest in a cool room. Give time to recover and regulate its temperature. 

Pour cool water on the body and focus on the belly, armpits, and paws. You can also use a sponge. Use a fan to help with the cooling process. Avoid ice water, as this can cause blood vessels to constrict and delay cooling. 

If you have a pet thermometer, stop cooling once your dog’s body temperature reaches about 39.4°C to prevent overcooling.

3. Seek Veterinary Care Immediately

Even if your dog seems to get better, we recommend visiting the clinic. A heat stroke in dogs can cause internal damage that might not be clear, including organ failure and brain damage. 

At the clinic, we’ll keep your dog stabilized and comfortable. This will include administering IV fluids to help restore hydration levels. Plus, we’ll ask you about all the symptoms you observed while we check your dog’s condition and symptoms. 

Normally, a dog’s body temperature ranges from 37.5°C to 39.2°C. When this reaches over 40.5°C, the dog has a heat stroke. 

Our vets will administer IV fluids to help treat dehydration. Additional dog heat stroke treatment​ and medications, such as oxygen therapy, pain relievers, and other medicines, will be used when complications arise.

4. Hydration and Diet

Treating heatstroke in dogs does not only come from the clinic. Once we give the go signal, you can bring your dog home with a few instructions on how to help it recover. 

The first step is to keep providing cool water and drinking water with added electrolytes if needed. Cool treats and nutritious dog food will also help in the process.

5. Rest and Recovery

The long part is the recovery stage. Give your dog all the time it needs to rest and regain its strength. Continue providing a cool and comfortable space for them to relax in.

How to Prevent Heat Stroke in Dogs

A veterinarian is checking a white dog's pulse while another vet is holding the dog gently. The pet owner is nearby and watching.

Prevention is always better than treatment when it comes to heat stroke in dogs. Here’s what you should do:

  1.  Avoid High-Temperature Activities

Dogs love to play, but sometimes it gets too hot outside. Always plan your walks, as the environment can get too hot for your dog. Remember, the ground can get extremely hot and can burn your dog’s paws.

Use the 5-second rule: place the back of your hand on the pavement. If it’s too hot to hold for 5 seconds, it’s too hot for your dog’s paws.

  1. Provide Plenty of Water and Shade

Whether indoors or outdoors, always ensure your dog has access to drinking water and a shaded area to rest. If your dog spends time outside, consider setting up a shaded area or using a cooling mat.

You can also add electrolyte supplements to your dog’s drinking water during hot days to help replace what’s lost through panting.

  1.  Watch Where You Leave Your Dog

You should never leave your dog in a parked car, even for a short period. This is important to remember. Temperatures in small, enclosed areas can rise quickly, so it’s important to keep your dog in a safe place.

  1.  Use Cooling Products

Make use of cooling coats, mats, and collars to provide a much better experience for your dog during hot, sunny days. While these don’t mean you should leave your dog out in the sun, these tools help a ton with the heat. 

  1.  Adjust Exercise Routines

Always take the weather into consideration whenever you exercise your dog. In hot weather, shorten walks and avoid strenuous activities. Always provide regular breaks and fresh water. If you can, play with your dog in indoor dog parks so they can stay cool while they have fun. 

"Heatstroke in dogs can escalate in minutes, but with quick action and the right support, most dogs can recover fully.”

- Dr. Rokas Proscevicius

Final Thoughts

Treating heat stroke in dogs starts with agile eyes and quick action. While it's a concerning situation, it can be treated and prevented. So, be sure to keep your dog cool so they can beat the heat. 

Frequently Asked Questions

Can you treat heat stroke in a dog at home?

Yes, you can begin first aid treatment for heat stroke in dogs at home by moving your dog to a cool, shaded area. Next, offer up cool water and gently apply cool water to their body. After, be sure to bring them to the clinic.

Can you treat heat stroke in a dog at home?

Yes, you can begin first aid treatment for heat stroke in dogs at home by moving your dog to a cool, shaded area. Next, offer up cool water and gently apply cool water to their body. After, be sure to bring them to the clinic.

Can you treat heat stroke in a dog at home?

Yes, you can begin first aid treatment for heat stroke in dogs at home by moving your dog to a cool, shaded area. Next, offer up cool water and gently apply cool water to their body. After, be sure to bring them to the clinic.

How long will heat stroke last in a dog?

It can vary. Mild cases of heat stroke in dogs can last for a few hours to a day. In severe cases, especially with organ damage, it can last for a few days or weeks. It will depend on the symptoms.

How long will heat stroke last in a dog?

It can vary. Mild cases of heat stroke in dogs can last for a few hours to a day. In severe cases, especially with organ damage, it can last for a few days or weeks. It will depend on the symptoms.

How long will heat stroke last in a dog?

It can vary. Mild cases of heat stroke in dogs can last for a few hours to a day. In severe cases, especially with organ damage, it can last for a few days or weeks. It will depend on the symptoms.

Can dogs recover from heat stroke on their own?

No, they cannot. A heat stroke in dogs is considered a serious emergency that must be treated to prevent organ damage and even death. Owners must act immediately and provide dogs with shade, cool water, and vet care.

Can dogs recover from heat stroke on their own?

No, they cannot. A heat stroke in dogs is considered a serious emergency that must be treated to prevent organ damage and even death. Owners must act immediately and provide dogs with shade, cool water, and vet care.

Can dogs recover from heat stroke on their own?

No, they cannot. A heat stroke in dogs is considered a serious emergency that must be treated to prevent organ damage and even death. Owners must act immediately and provide dogs with shade, cool water, and vet care.

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