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Why did my dog throw up white foamy vomit and what should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Cavalier King Charles Spaniel | Female | spayed | 6 years old | 17 lbs

My dog threw up white foamy vomit last night. What does this mean? Thanks!

2 Answers

Most Helpful Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on July 6th, 2018

I am sorry to hear about Chloe! Vomiting can occur for a multitude of reasons. These can range from things like eating a new dog food or table scraps, to ingestion of a foreign object like a sock or toy causing obstruction, to gastritis or stomach ulcers, infections, systemic disease, and more. If Chloe just vomited one time and seems back to normal now, I would not be too concerned and would just monitor her for the next 24 hours. If however she is still vomiting, if she seems weak, if she seems painful in the abdomen, if there is blood in the vomit, or if she stops eating she should be examined by her vet. You can read more about vomiting at https://www.petcoach.co/article/vomiting-in-dogs/

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Other Answers

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    Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

    Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

    Published on

    There isn't any one particular reason that a dog will vomit white foamy material. If there isn't any food in the stomach, but the dog is nauseated, then they may vomit white foam or yellow bile. If Chloe continues to vomit, does not want to eat or does not seem to feel well, then I would certainly have your veterinarian examine her to see if they can determine the problem and to give her anti-nausea medication. Thanks for using Petco Pet Education Center, formerly Petcoach!

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