10 Warning Signs Your Dog Has Heatstroke
Hot weather can sneak up on your dog’s health in ways that aren’t always obvious. Dogs don’t sweat like humans, so they rely heavily on panting to cool off, but that only goes so far. When their bodies can’t regulate heat fast enough, things can take a dangerous turn. These signs can help you catch heatstroke early and act quickly.
Panting That Doesn’t Slow Down
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Dogs naturally pant to cool off, but if it doesn’t ease up even after they’ve rested or moved to a shady spot, something’s off. Rapid, heavy panting that seems out of proportion to their activity level can mean they’re struggling to release heat. It’s especially important to watch for this if the air feels humid.
Gums Turning Brick Red
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During heatstroke, blood vessels expand in an attempt to cool the body, which can result in dark pink or red gums. This change may be accompanied by drooling or a dry mouth. If the color doesn’t return to normal quickly, it could mean their temperature is still climbing and needs immediate attention.
Staggering or Wobbling Walk
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A dog that suddenly looks uncoordinated or walks like it’s dizzy could be in serious trouble. Disorientation often shows up when their internal temperature rises too high and affects the brain. It’s one of the later signs of heatstroke and indicates that the situation is no longer mild. Time is critical here.
Vomiting That Isn’t Food-Related
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Heatstroke can also upset their entire system. Vomiting, especially when it’s not linked to eating something odd, can be a warning flag. Some dogs may also experience diarrhea, which can exacerbate dehydration. If either one happens during hot weather or after exercise, it’s a strong hint that something more serious is going on.
Refusing to Get Up or Move
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If a dog who usually perks up for snacks or squeaky toys suddenly doesn’t budge, don’t assume they’re just worn out. Weakness and extreme fatigue are big signs that their body is overheating. They might lie down and struggle to get back up, or appear uninterested in their surroundings.
Drool Gets Thick and Sticky
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Slippery, watery drool is common after a hot walk. However, when the saliva becomes thick, ropey, or difficult to shake off, it’s often a sign that they’re struggling with internal heat. Their body is drying out, and that saliva is a clue that their system is under strain.
Shaking or Muscle Twitching
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Shivering in the middle of a heatwave doesn’t make much sense, unless the dog’s muscles are reacting to dehydration. These tremors are more like involuntary twitches and might affect just one leg or ripple across the body. Their muscles are out of balance, and that can mean heatstroke is underway.
Nose and Eyes Look Dry
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Dogs lose moisture through more than just panting. A nose that’s usually wet may start looking dry or cracked during heatstroke. Eyes can seem sunken or less glossy. These subtle signs of dehydration can be easy to miss but show up early.
Heartbeat Races Fast
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Excitement can make their heart race, but so can heatstroke. You can check it by placing your hand behind the front leg, near the chest. Just remember, what’s fast for a Great Dane isn’t fast for a Chihuahua—know your dog’s baseline.
Sudden Collapse or Seizure
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This is as serious as it gets. When a dog suddenly drops or goes rigid, it may mean their body can no longer regulate its own heat. By the time this happens, internal organs could already be affected, and quick action can save their life.