Surprising summer threats to your dog


Story highlights

Dogs can suffer strokes if they overheat outside or in the car

They may enjoy swimming, but pools can be dangerous

Editor’s Note: This story was originally published in 2013.

CNN —  

Summertime means fun in the sun, and dog owners often include their pets in outdoor activities like hiking, swimming, camping and running in the park or even on the beach.

As healthy as outdoor activities can be, they can pose unique dangers for our canine friends, said Kristina Knox, a veterinary technician at Cumberland Animal Clinic in Smyrna, Georgia. Here’s what to look for in order to keep your dog happy and healthy as temperatures soar.

Hot sidewalks

If the sidewalk, parking lot or driveway where you’re walking your dog is too hot for you to walk barefoot, it’s too hot for your dog. They can burn their paws.

“When you feel the bottom of a dog’s pad, especially when they’re young, it feels like the skin on your foot,” Knox said.

In suburban areas that aren’t shaded by large buildings or trees, concrete and asphalt can bake in the hot summer sun. “People make a big mistake by putting their dog in the back of a truck in summer,” Knox said.

Dogs can be stoic about pain. It can be difficult to tell that they’ve burned their feet, she said – and it’s hard to keep them off their feet while they’re trying to heal.


A dog with sunburn will have many of the same indications as a person with sunburn: The skin is extremely red and sensitive to touch and feels hot. Sometimes, it can blister or scab. Dogs and cats with white fur are especially susceptible, Knox said.

Long-haired dogs who get “summer haircuts” are also at risk for sunburn, Knox said. “A lot of times, with the long hair, you shave them down really close. After 30 minutes in the sun or more, you’re going to have problems.”

One solution she recommends is to put sunscreen for infants (which does not include zinc) on your dog to protect them from those harmful rays. Just make sure they don’t lick it, she said.

Hot cars

One of the biggest mistakes people make in summer is to underestimate how dangerous a hot car can be, Knox said.

When people get in a hot car, they’re already cooler and can sweat to cool off more; dogs can’t do that. Dogs can pant, and they sweat only through their ears and the bottoms of their feet.

“So when you leave a dog in a car, it takes only several seconds for that car to heat up,” she said. “Even if you think, ‘Oh, it’s a little breezy outside; I’ll just crack the windows; the dog will be fine,’ that dog has no way to regulate his body temperature.” The result, she said, can be stroke.

Overheated dogs appear dizzy, Knox said. Their footing is unsure, and they are disoriented. The bigger and longer their tongues are as they pant, the more likely they are to have heat exhaustion, she said. As with a dog in a hot car, if your dog displays these symptoms, they could have a stroke. When in doubt, use a rectal thermometer to take their temperature.


Make sure your dog has access to water in the summer, and don’t leave them outside for long periods of time.

It’s not easy to tell whether your dog is dehydrated, and it can be a symptom of other kinds of illnesses. “The thing you have to do is start swiping your dog’s gums,” Knox said. “Just lift up their lip and take one good swoop on their gums. It should feel nice and wet, slick to you.” If the gums feel dry, tacky or sticky, your dog is already affected by dehydration, she said.

Another way to check is to pull up the skin between their shoulder blades. If the skin falls back slowly, that’s a sign of dehydration.

If you can see that your dog is dehydrated, it’s time to head to the vet. They might hook your dog up to an IV for quicker hydration and check for other problems.

Fleas and ticks

Dogs are mostly stricken with allergic reactions to flea bites. They are allergic to flea saliva, Knox said. A dog’s histamine reaction to the bite can include itchy, inflamed skin and even hair loss. Or, as they chew an area of their body with fleas, they could ingest a live flea, resulting in tapeworms.

Ticks can carry harmful bacteria; deer ticks, which can carry Lyme disease, are especially hard to find on dogs because they are small and flat, not large and gorged with blood. The best thing to do, Knox said, is to focus on prevention.

Veterinarians can prescribe medications that combat fleas and ticks, as well as heartworms; Knox said they can be more effective than over-the-counter products such as flea and tick collars and topical treatments. Dog owners in some parts of the country might need to use these year-round, because consistently warm weather allows the flea population to survive, Knox said.

Stinging insects

Just as with humans, dogs can have dangerous reactions to stinging in