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Dog died after vomiting, bloody stool days later. Was it heat stroke?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 11.8 lbs

My pup died a week ago tomorrow. Is it possible for him to have had a heat stroke? He was left out for a very long time the Friday before cause we had a flea treatment being done an we couldn't be in the house for several hours. It was 4 days after that he had started throwing up an then he started pooping blood an was gone within 3 days

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2 Answers

Most Helpful Answer

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Answered By Julie Settlage, DVM, DACVS-LA, CVA

Veterinarian, Board-Certified Veterinary Surgeon (large animal), Certified Veterinary Acupuncturist

Published on September 27th, 2017

I am so sorry that you lost Bandit. His picture is adorable! It is highly unlikely that Bandit died from heat stroke. Typically, dogs experiencing heat stroke show signs of rapid panting, lethargy, no interest in eating, red gums at the time of the heat stroke - not delayed by several days. The vomiting and bloody diarrhea that Bandit had are more typical for hemorrhagic gastroenteritis (HGE) which does not always have a reason for developing. It is possible that he could have also eaten something that was toxic to him or had another health problem. It is very hard to lose a pet, and in this case, I do not believe that leaving him out of the house contributed to his death. Again, I am so sorry for your loss. Thank you for using Pet Coach.

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    Answered By Dr. Dayna, DVM, CVA

    Veterinarian, Certified Veterinary Acupuncturist

    Published on

    Heat stroke can certainly manifest itself a day or so after the event, as it takes a while for the clotting cascade to become comprised and spontaneous bleeding to occur. Of course other problems cause intestinal bleeding as well. HGE, intestinal parasites, tumors, toxin ingestion, and Addison's disease are just a few that come to mind. I'm so sorry you lost Bandit- he is adorable in his picture. Take care and thank you for using Pet Coach.

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