Simpsonville Summers & Dogs Don’t Mix
If you’re like me, you’ve probably been hiding indoors from the sweltering South Carolina heat lately. Summer in Simpsonville is beautiful, but those long, hot days can quickly become dangerous—not just for us, but for our dogs as well. As temperatures climb, so does the risk of one of the most serious warm-weather emergencies veterinarians see: heat stroke.
What Is Heat Stroke?
Heat stroke occurs when a dog’s body temperature rises above 105°F and they can no longer cool themselves effectively. Dogs normally regulate their body temperature by panting, seeking shade, drinking water, or cooling off in water. However, extreme heat or high humidity can overwhelm these natural cooling methods, causing their body temperature to rise rapidly.
There are two types of heat stroke:
- Non-exertional (classic): This results from exposure to dangerously hot environments, such as being left outdoors without shade or water, or being trapped in a parked car or poorly ventilated space.
- Exertional: This occurs when a dog generates more body heat than it can dissipate during strenuous exercise, prolonged play, or due to medical conditions like seizures or severe muscle tremors.
Which Dogs Are at Risk?
Any dog can develop heat stroke, but some are at a much greater risk than others. Higher-risk pets include flat-faced (brachycephalic) breeds, dogs with respiratory conditions (like laryngeal paralysis or a collapsing trachea), dogs with heart disease, senior pets, overweight pets, dark-coated dogs, and any dog with a previous history of heat stroke.
Environmental factors like high humidity, poor ventilation, heat waves, or sudden temperature spikes can also drastically increase your dog’s risk. Lastly, certain medications (such as furosemide or beta-blockers) and toxins that cause seizures or muscle tremors (including macadamia nuts and organophosphate insecticides) compound the danger.
Why Is Heat Stroke So Dangerous?
Heat stroke is a true medical emergency because it can rapidly damage nearly every organ in the body. As body temperature rises, cells become injured, triggering widespread inflammation, reduced blood flow, decreased oxygen delivery, and abnormal blood clotting. The gastrointestinal tract is particularly vulnerable, allowing bacteria to enter the bloodstream and potentially cause sepsis, bloody vomiting, or diarrhea. The brain can develop swelling, seizures, strokes, or even coma. The kidneys may suffer injury from dehydration, poor circulation, inflammation, and toxins released from the damaged intestines. The heart and lungs are also at risk, with up to 25% of affected dogs developing dangerous, irregular heart rhythms. One of the most life-threatening complications is disseminated intravascular coagulation (DIC), a condition that can ultimately leave the body with no defense against internal bleeding. DIC is a major contributor to mortality in dogs with severe heat stroke.
It sounds frightening because it is. As a veterinarian, heat stroke is one of my greatest concerns during the summer months—especially for my own dog. The good news is that most cases are preventable. Knowing the warning signs and taking a few simple precautions can make all the difference.
Know the Signs
When it comes to heat stroke, you can never be too cautious. If your dog has been exposed to high temperatures, recently transitioned from a cool to a warm environment, or has been exercising in the heat and develops any of the following signs, seek emergency veterinary care immediately:
- Heavy or rapid panting
- Body temperature above 105°F
- Bright red, pale, or muddy-colored gums
- Excessive drooling
- Vomiting or diarrhea
- Rapid heart rate
- Weakness or collapse
- Seizures or tremors
- Unexplained bleeding
What to Do in an Emergency
If you suspect heat stroke, begin cooling your dog right away while simultaneously preparing to leave for the veterinary hospital:
- Move to safety: Get your pet into the shade or an air-conditioned room immediately.
- Cool them down: Use cool or room-temperature water to wet their body. A hose, buckets of water, or careful immersion can help if your dog is conscious and able to tolerate it.
- Circulate the air: Use a fan to promote evaporative cooling.
- Offer water: Provide fresh water only if your dog is alert and able to drink voluntarily.
CRITICAL DON’TS: Avoid covering your dog with wet towels (which can trap heat), never force water into their mouth, and do not delay veterinary care while searching for cooling supplies. If your dog is unconscious, having seizures, or struggling to breathe, go directly to a veterinary clinic with the air conditioning running during transport.
Emergency veterinary care is ideal, but if an emergency hospital is not nearby, the closest veterinary clinic can provide initial stabilization. Treatment may include oxygen therapy, IV fluids, medications for seizures or abnormal heart rhythms, antibiotics if sepsis is suspected, and blood or plasma transfusions if clotting problems develop. Your dog will require temperature monitoring, heart rhythm monitoring, and blood work to assess the extent of injury. Because organ damage can appear over several days, hospitalization and repeat testing are often needed.
Prevention Is the Best Medicine
Heat stroke has a 31–60% mortality rate, making prevention the most important step in protecting your pet. Reduce your dog’s risk by never leaving them in a parked car. Before walking away, check your vehicle in case your dog has wandered inside unnoticed, and keep doors locked when the car is unattended. Limit peak-sun activity: During extreme heat, keep your dog indoors and avoid exercise during the hottest parts of the day. Always provide access to shade, fresh water, and fans or good airflow. Allow your dog time to gradually acclimate to warmer temperatures during seasonal changes or after moving to a new region. Maintaining a healthy body weight, supervising pets around hot enclosed spaces such as garages or dryers, and supporting breeding practices that prioritize healthy respiratory function can also help keep your dog safe.
Summer in Simpsonville is a time for backyard adventures, neighborhood walks, and making memories with our dogs. By understanding the risks of heat stroke, recognizing the warning signs, and taking simple steps to keep our pets cool and safe, we can help our four-legged family members enjoy the season with us. A little preparation goes a long way—because the best summer memories are the ones made with a happy, healthy dog by your side.
Any content, resident submissions, guest columns, advertisements, and advertorials are not necessarily endorsed by or represent the views of Best Version Media LLC (BVM) or any municipality, homeowners associations, businesses, or organizations that this publication serves. BVM is not responsible for the reliability, suitability, or timeliness of any content submitted, inclusive of materials generated or composed through artificial intelligence (AI). All content submitted is done so at the sole discretion of the submitting party.
