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My dog is vomiting white liquid, losing weight, and has diarrhea. Why?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 3 months and 8 days old | 15 lbs

My dog is vomitting white liquid, loss of weight, appetite and liquid feces

1 Answer

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on June 22nd, 2017

Poor guy. Scrappy sounds like he is in pretty bad shape. Based on his severe symptoms I would highly recommend taking him to your nearest vet right away for some testing and treatment depending on his underlying illness. Some possible causes of vomiting, weight loss, appetite and liquid stool are parvovirus, foreign body obstruction or a bacterial infection. The vet will likely start with a parvovirus test (especially if Scrappy is not fully vaccinated), and additional testing if needed. Puppies can get dehydrated very quickly when they are both vomiting and having loose stool. Once we know what is going on with Scrappy, we will know how to treat him and hopefully get him well again. Until you can get him in you should offer him plenty of water and perhaps even Pedialyte (non-flavored) diluted with water and a liquid diet (Ensure) can be tried in small amounts. I hope your puppy Scrappy is able to make a full and speedy recovery. Take care.

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