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My dog has diarrhea, upset stomach, won't eat. What's happening?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | unspayed | 7 months and 1 day old | 45 lbs

Rosebud has a very upset stomach, diarrhea, and won’t eat or drink. What can I do to make her feel better?? She started acting lethargic this morning(11/16) and has started to have diarrhea(early 11/17).

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2 Answers

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on November 17th, 2017

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Rosebud! She is very cute! Causes of diarrhea can be from: intestinal parasites, viral or bacterial infections, dietary indiscretion (ate something gross), new treats/dog food/table food, toxin ingestion, food allergy/intolerance. If Rosebud is fully vaccinated and has been thoroughly dewormed and has had stool samples checked then I would with hold food for 12-24 hours. Do not take away water unless vomiting. After the fast offer a bland diet of boiled chicken or hamburger with rice. Feed 1 cup per 20 lbs per day until 2 normal stools. If she continues to not eat or starts to vomit, she needs to see your Vet. I hope this helps and I wish Rosebud a speedy recovery!

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on September 19th, 2019

    T Rex is sick. The diarrhea can be caused by intestinal worms, a severe GI illness, or eating something rotten among other things. I can tell you how serious it is that he won't eat or drink in addition to his other signs, so I strongly urge you to take him into a vet immediately.

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