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My diabetic dog threw up after missing insulin. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female

My dog is diabetic and keeps throwing up. They haven't gotten their insulin today. What could be wrong?

2 Answers

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on July 24th, 2016

Vomiting can be a sign of elevated glucose levels. If your pet has skipped an insulin treatment then this can very well be the reason why she is now sick. It is best to feed her a meal and get her back on her insulin regimen as soon as possible to avoid prolonged high sugar levels that will continue to make her ill. If she is also refraining from eating and continues to act ill, then it is best to get her seen by a vet right away because she may be ketoacidotic (high level of ketones in the body due to excessively high sugar levels in the bloodstream) and in need of emergency treatment to help stabilize her.

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32Pet Parents found this answer helpful

Other Answers

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    Answered By Dr. Dayna, DVM, CVA

    Veterinarian, Certified Veterinary Acupuncturist

    Published on January 6th, 2018

    If he has been vomiting and not eating then I would probably error on the side of no insulin. I think it is safer to have a high glucose for a day or so rather then have a hypoglycemic crisis and end up seizuring. However, if he does not seem back to normal by tomorrow then I would highly encourage you to have him evaluated by a veterinarian as soon as possible. Best of luck and I hope he improves soon. Thank you for using Pet Coach.

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