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Why is my puppy exhausted with bloody diarrhea and trouble breathing?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 5 lbs

Im fostering two pups and one has symptoms which in the beginning included almost liquid poop and blood in his poop. We took him to the vet and they tested him for parovirus but it came back negative so they gave us some antibiotics to give him because they suspect he may have worms. However I have been noticing so troubling signs from him, such as he is constantly exhausted, he seems to have trouble breathung and a very intense stomach contraction when he tries to breath. please let me know!!!

2 Answers

Most Helpful Answer

Lauren Kennedy, DVM

Answered By Lauren Kennedy, DVM

Veterinarian

Published on June 19th, 2017

Having severe diarrhea like Beckett seems to be having can be very painful and uncomfortable. This may be why he is more lethargic than normal and why his stomach seems tense/contracted. It is great news that he doesn't have Parvo! Hopefully in addition to the antibiotics your vet also dewormed Beckett, as puppies often have intestinal parasites. If Beckett stops eating, begins vomiting, or the diarrhea isn't improving after about 48 hours of being on the medication I would recommend bringing him back to the vet to be reevaluated. Sometimes with severe diarrhea these little puppies can become dehydrated and need additional treatment like fluid therapy. Good luck!
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Related Answers from Veterinarians

  • Answered By Dr. Elizabeth

    Veterinarian

    Published on June 6th, 2019

    I recommend to have Beckett examined by the veterinarian today. There may be something very serious going on. The veterinarian can also give Beckett some medications to help her to feel better and control the diarrhea. I hope it’s nothing serious.

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    1Pet Parents found this answer helpful

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