What Every Pet Owner Needs to Know to Act Fast and Save a Life
When temperatures rise, the risk of heatstroke in pets increases dramatically—and it can become life-threatening in minutes. Unlike humans, dogs and cats cannot regulate their body temperature as effectively, making them especially vulnerable during the summer months.
This guide will help you recognize the warning signs, take immediate action, and know when to seek emergency care.
What Is Heatstroke in Pets?
Heatstroke occurs when a pet’s body temperature rises above a safe range. Medically, the diagnosis of heat stroke occurs when the body temperature is 105.8*F or higher and is paired with central nervous system dysfunction. However, an elevated temperature that is above the high-end normal temperature (102.5) can still be concerning and could progress to heat stroke. The concern is that your pup can no longer cool themselves down effectively. Without rapid intervention, it can lead to organ failure or death.
Common causes include:
- Being left in a hot car (even for minutes)
- Excessive exercise in warm weather
- High humidity
- Lack of shade or water
Signs of Impending Heatstroke (Know These Early)
Recognizing symptoms quickly can save your pet’s life.
Early Signs:
- Excessive panting
- Drooling
- Vomiting or diarrhea that occurred once or twice
Advanced Signs (Emergency):
- Lethargy or weakness
- Profuse vomiting and continued diarrhea
- Collapse or inability to stand
- Seizures
- Bright red or pale gums
- Confusion or disorientation
If your pet shows advanced signs, this is a medical emergency. Seek care immediately. The emergency room at Portland Veterinary Emergency and Specialty Care is open 24/7/365. Call us at 207-878-3121.
What to Do Immediately (First Aid Steps)
If you suspect heatstroke:
- Move to a Cool Area
Bring your pet indoors, into shade, or into an air conditioned area immediately.
- Start Cooling Gradually
- Use cool (not ice-cold) water on their body
- Focus on belly, paws, and armpits
- Use fans if available
- Offer Small Amounts of Water
Do not force drinking and do not offer if they are not mentally aware
- Go to an Emergency Veterinarian
Even if your pet seems to improve, internal damage may already be occurring.
What NOT to Do
- Do not use ice baths or douse them in rubbing alcohol (can cause their temperature to drop too quickly)
- Do not delay veterinary care
- Do not assume recovery once symptoms improve
When to Go to Emergency Care
Go immediately if you notice:
- Vomiting or diarrhea
- Weakness or collapse
- Not responding to normal communication
- Seizures
- Heavy panting that won’t stop
Heatstroke can worsen quickly—minutes matter.
Pets Most at Risk
Some pets are more vulnerable than others:
- Brachycephalic breeds (Bulldogs, Pugs)
- Senior pets
- Overweight animals
- Pets with heart or respiratory conditions
- Thick-coated breeds
Prevention Tips (Simple but Critical)
- Never leave pets in a parked car
- Walk early morning or later evening
- Always provide fresh water
- Avoid hot pavement (test with your hand!)
- Limit strenuous activity in heat
- Provide shade outdoors
Real Talk: Heatstroke Is Preventable
Every summer, emergency hospitals see cases that could have been avoided with awareness and quick action.
The good news: you have the power to prevent it.
When in Doubt, Call
If you’re unsure whether your pet is experiencing heatstroke, it’s always better to err on the side of caution.
Call us at 207-878-3121 or visit your nearest emergency veterinary hospital immediately.
