Heatstroke and Your Pet

As Spring warms up into Summer and the humidity and heat start to really set in, it's good to remember that, like every other member in your family, you need to take extra care with your pet. You can become dehydrated and dangerously hot, which can result in falling unconscious at best, vital organ damage, or at its very worst, death. The same is true for your pets!

Prevent heatstroke before there's any problems

Animals bodies work differently than human bodies. For instance, did you know that cats and dogs only sweat through the pads on their feet? What keeps you cool may not help your pets to stay cool too. If you're ever unsure about how to care for your pet specifically, please feel free to ask us!

Here's some basic tips to help you help your pet avoid heatstroke:

  • Use an air conditioner or fan.

  • Be prepared for severe or disastrous weather that could disable power in your home. This will probably exacerbate the risk of heat stroke, as you will have a harder time providing cool water.

  • Provide plenty of shade and ventilation. This is true while you're indoors, but it's especially important when you're outdoors. When outdoors, ensure nothing could keep your pet from reaching the shade (e.g., leash getting stuck on something).

  • Keep your pets indoors both on very hot days and during the hottest part of the day, and avoid ground that will retain heat, such as asphalt and sand.

  • NEVER leave your pet in the car unattended, no matter how quick your errand or how shady your parking spot is. Cracking the windows also is not enough to ensure the safety of your pet. This is a leading cause of hyperthermia-related pet deaths.

  • Do not muzzle larger pets, like dogs. Panting is part of their cooling process, and how they pant will help you determine how well or poorly they're reacting to the temperature.

  • Make sure your pet has easy access to water, and if you're going to be out of the house, consider using a pet fountain that will prevent spillage. Putting ice cubes in your pet's water will also help them keep their internal temperature down. Note: Older or impaired animals may drink less water than other pets; be sure you make cool water even easier to access for them.

  • Use ice packs or similar DIY options (e.g., frozen water bottles) to help your pet cool itself. For small pets, you can put this in their cage to lay against. Larger animals may need them wrapped in a towel so they can lay on top of them.

  • Give your pets cool treats, like peanut-butter Popsicles or chilled wet food.

  • Take extra care with animals that have certain high-risk factors, including heart or lung disease, obesity, or thick-hair coats.


Early stages of overheating can be treated at home, but you should check in with us to make sure your pet isn't suffering any internal consequences. Hopefully you can catch these symptoms quickly and prevent heatstroke from progressing. Once it's moved to heatstroke, you'll need to take some immediate actions and then bring your pet to us as quickly as possible. Symptoms of overheating and heatstroke include:

  • Unusually rapid panting with the tongue hanging out.

  • Lethargy.

  • Unwillingness to move.

  • Dehydration.

  • Rapid or irregular heartbeat.

  • Difficulty urinating.

  • Black or tar-like stool.

  • Vomiting and diarrhea.

  • Uncoordinated movements and muscle weakness.

  • Dizziness or stupor.

  • Glazed eyes.

  • Thick saliva.

  • Dark red or very pale discoloration of moist tissues (gums and tongue)

  • Vomiting blood.

  • Bloody stool.

  • Sudden breathing distress, possibly with fluid in the lungs.

  • Muscle tremors and seizures.

  • Shock.

  • Coma.


Even if your pet seems better once you normalized their body temperature, they may in fact still be injured. Always bring your pets into us for assessment and treatment to prevent very serious internal problems. These may include:

  • Acute kidney failure.

  • Cardiac or pulmonary distress or arrest.

  • Blood clot dysfunction or disorder.

  • Systemic inflammatory response system.

  • Liver disease, disorder, or cell breakdown.

  • Depression or other mental changes.

  • Hydrocephalus (abnormal accumulation of fluid around the brain).

  • If left untreated, heatstroke can result in death.

Treatment - What you can do

You need to handle your pet carefully if you determine they have heat stroke. Making them too cold, or making them cold too quickly can cause problems. In the case of the former, it can increase the risk of shock, as well as hypothermia. The latter will cause the blood vessels to constrict, making blood flow difficult and preventing your pet from actually being able to cool down.

In the case of small pets, you want to wet their paws and ears with cool water. Wetting the fur will also help, imitating the process of sweating. It is especially important to cool small pets down slowly, otherwise there's an increased risk of life-threatening complications. Once you've brought their temperature down some, wrap them in a wet towel gently and loosely to keep cool for transport to us or an emergency vet station.

Caring for larger pets is similar. Bring your pet's body temperature down to a safe level (about 103° F) by wetting their fur with cool water; you can also use cloths wet with cool water placed in key locations such as the back of the head and the armpits. Allow them to drink or lick ice if they are thirsty, but do not give them cold water or try to force them to drink. You can use a children's re-hydration drink or add a little salt to their water to help restore minerals lost from overheating. Once they're at a normal temperature, dry your pet thoroughly to prevent hypothermia. Bring them to us or an emergency vet immediately.

Treatment - What we can do and Aftercare

Once you've brought your pet to us, we offer an array of services to meet the specific needs of your pet. These include:

  • Temperature regulation.

  • Respiratory aid.

  • Blood tests.

  • Clot tests.

  • Full body exam.

  • Tests for damage to internal organs.

  • Treatments based on our diagnosis.

In most cases, pets can fully recover, complication free. however, your pet may temporarily or permanently require special medications if there are complications. Always remember, pets that have experienced heatstroke once have a greater risk of experiencing it again.

If your pet's behavior has not returned to normal in a few days (or as otherwise discussed with your vet), bring your pet back for further assessment.