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When to worry if my dog is vomiting, has diarrhea, and won't eat?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | 10 lbs

My dog vomited about 3 times today. It looked like water mixed with mucus. She also has diarrhea and wont eat. In the last couple hours the vomiting seemed to have stopped. She laying around the house more than usual but when I took her for a ride she was up and ready to go as usual. When should I get her checked out? I have a refill for antibiotics for her, would that help?

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on September 23rd, 2018

Do not give her the antibiotics without directions to do so from your veterinarian. Diarrhea and throwing up can have many causes. It is basically a problem with the stomach and intestines caused by a food over sensitivity, eating something that does not agree with the dog, intestinal parasites, bacterial infection, viral infection, the weather, food change, stress, etc.  I would fast Sheba for 24 hours and then put her on bland food for two days, such as boiled white rice and boiled white boneless chicken meat, fed in small quantities over several feeds and then transition back to her regular food slowly over a few days. If this does not clear up the diarrhea or if the vomiting increases, or if she gets lethargic, she needs to see a veterinarian for an exam as there may be something more serious such as an infection going on.

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