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Why is my dog eating grass and throwing up yellow foam repeatedly?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 9 years and 2 months old | 25 lbs

I got home and my dog wanted to go outside and she started eating grass we come back in and she goes and throws up the grass and a pale yellow froth with it. We go back outside and she eats more grass and throws it up again in the same pale yellow froth.

3 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on March 29th, 2017

Oh no, poor Jackie! She could be suffering from a severe GI infection, may have eaten something rotten, could have a foreign body, or pancreatitis. You can try a home remedy to see if that helps before having to take her into the vet. Withhold food for 12-24 hours, then feed a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day for a couple of days. Then slowly add back in her normal diet. If the vomiting continues in the absence of food, she vomits the bland diet, develops diarrhea, stops drinking water, starts vomiting water, or becomes very lethargic, she will need to see a vet right away.

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Other Answers

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    Answered By Rosemary Barber, DVM

    Veterinarian

    Published on

    Hi! I see that you posted this yesterday. Pets often eat grass when they are nauseous, as it helps them to vomit. If she is still vomiting today, she would need to see her vet, to look into the cause of the vomiting. If the vomiting has stopped, and she is eating and acting normally, then I wouldn't worry at all! Best of luck, and hope she is feeling better!

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    Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

    Veterinarian

    Published on August 1st, 2017

    As a first approach, as these episodes are often dietary related, I would suggest to withhold food for the next 8-12 hours and then start feeding with a bland diet based on boiled chicken and rice in small portion every 6 hours for the following 48hours. Then gradually reintroduce the normal diet over 5 days. I would definitively recommend a veterinary check up if the signs persist or you notice diarrhoea, more vomiting, lethargy or inappetence. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

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