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Dog coughing thick saliva after hot walk, is it heatstroke?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered

I took my dog for a walk while it was hot and tried to stop in the shade often and give him water. Even so, he began to cough up large amounts of thick saliva/ We brought him home, gave him water, sat him in front of a fan, and poured water over him to get him to cool down, but he hasn't stopped gagging for 2 hours. He'll seem fine and then ever 3-5 minutes will cough up another puddle of saliva. He still has an appetite as he is still begging for our food as usual, but I am still concerned.

1 Answer

Most Helpful Answer

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Answered By Emily, DVM

Veterinarian

Published on June 14th, 2017

These signs are very concerning for a heat injury. I recommend Joey go to the nearest open veterinary clinic as soon as possible as heat injury can lead to organ failure, bleeding and shock if not treated promptly.

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