Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

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

Emily, DVM

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.
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share

Styled arrow button