Pad burns are one of the most common summer injuries dogs turn up at a vet with, and they are almost entirely a mistake of measurement. People check the air temperature. Dogs walk on asphalt, which absorbs solar radiation all day and can be far hotter than the air above it - and unlike you, a dog cannot take its shoes off to find out.
The test that replaces guessing
Put the back of your hand flat on the surface and hold it there for seven seconds. If you cannot keep it there comfortably for the full seven, the surface is too hot for your dog to walk on. Back of the hand, not the palm - palms are calloused and will lie to you.
Two things this test catches that intuition does not. Asphalt stays hot for hours after the sun has moved off it, so a 7pm walk on a road that baked all afternoon can still fail the test on a pleasant evening. And a shaded stretch of the same road can pass while the sunlit stretch fails, which is why the answer is often a route change rather than a canceled walk.
What actually solves it
- Change the time. Early morning is the whole solution and it costs nothing. Before the surface has had a day of sun on it, none of the rest matters.
- Change the surface. Grass, dirt, woodland trail, packed sand in the shade. A route that keeps the dog off asphalt is better than any product.
- Shorten it. Two short walks in the cool beat one long one at 2pm, and a hot day is a good day for indoor enrichment instead.
- Then, if you still need to cross hot ground - boots. Not first. Boots are the answer to unavoidable hot surfaces, not a license to walk a dog across a car park in July.
On a trip there is a fifth option people forget: take the paws off the ground entirely. For a small or older dog crossing a hot resort car park or a city block at 2pm, a folding travel stroller solves the surface problem completely, which no boot does.
Where boots earn their place
Boots are genuinely useful for city dogs who cannot avoid pavement, for service and working dogs, and for trips where the walk from the car to the trail crosses baking asphalt. They are also the item most likely to be bought, tried once, and abandoned - because they were the wrong size and fell off.
Two things decide whether boots work: sizing, and acclimation. Trace the weight-bearing paw on paper rather than measuring a lifted one, because a paw spreads under load, and size to the larger front paws. Then introduce them indoors over a week before you rely on them outdoors. Our boot sizing guide covers the method, and the boot roundup ranks what stays on.
Paw wax: what it does and does not do
Wax-type paw balms create a thin barrier and help with abrasion, salt and ice. They are not heat protection in any meaningful sense - a millimeter of wax does not insulate a pad from a surface hot enough to fail the seven-second test. Use balm for conditioning dry, cracked pads and for winter grit; do not use it as a substitute for not walking on hot asphalt.
Spotting a burn
Pad burns often are not obvious at the time, because a dog will keep walking on a burnt pad if you keep walking. Look for:
- Limping, or refusing to walk, shortly after being on a hot surface
- Pads that are darker or redder than normal, or noticeably paler in patches
- Licking or chewing at the feet
- Missing pad surface, blisters, or flaps of loose pad
- The dog holding one paw up, or walking oddly on grass but not on carpet
If you see any of that: get the dog off the hot surface, cool the feet with cool - not ice-cold - water, keep the dog from licking, and call a vet. Burnt pads get infected easily, and the ones that look mild on day one frequently need treatment on day three.
The rest of the hot-weather picture
Paws are the injury people forget; heat itself is the one that kills. On any day hot enough to worry about pavement, you are also managing hydration and body temperature. The short version: walk early, carry water, use shade, and know that a dog lying on a cooling mat in shade sheds heat far better than a dog standing in it. A cooling vest is worth having if you walk in the middle of the day by necessity rather than choice.
And the car remains the biggest risk of a hot day out - a parked vehicle heats fast enough to be lethal well before it feels dangerous. The numbers and the protocol are in keeping a dog cool in the car.
Which dogs are most at risk
- Puppies, whose pads have not toughened yet.
- Indoor and carpet dogs - pads condition to what they walk on, and a dog that mostly walks on grass has softer pads than one that walks pavement daily.
- Dogs recently moved to a hot climate, for the same reason.
- Small dogs, whose whole body sits closer to the radiating surface.
- Dark-coated and short-nosed dogs, who are fighting the heat itself as well as the ground.
The single habit worth building: touch the ground before every summer walk. It takes seven seconds and it is the entire prevention strategy.
