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My dog's throwing up, has diarrhea, and stringy poop. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Bichon Frise | Male | neutered | 45 lbs

Our Diddy has been having intermittent very mucous stringed stool or diahrrea. Last night he was up vomiting almost every twenty minutes or heaving. Could this be a good sensitivity or something more? He's not vomiting etc now, and is active - though rather tired, of course.

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on August 7th, 2017

Common causes of diarrhea in dogs include food intolerance, food allergies, intestinal parasites, dietary indiscretion, bacterial or viral infection, stress colitis, autoimmune disease, systemic disease (liver, kidney, pancreas, diabetes), among others. If Diddy has vomiting or diarrhea for longer than 24 hours, I recommend that he be evaluated by a vet for treatment, as dogs can quickly become dehydrated. If he is no longer vomiting and is eating normally, you can try a supplement like ProPectalin AntiDiarrheal Gel for Dogs

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