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My dog vomits white foam, won't eat. Is it gastritis or a blockage?

Updated on September 23rd, 2025

Pet's info: Dog | Border Terrier | Female | unspayed | 2 years and 9 months old | 4.3 lbs

Hi, I need expert help with mine pet. Namely, Masha vomited for two days a white foam. She did not eat anything or drink water. We made a blood picture, in the further enclosure I will provide you with photographs. The day before today passed without vomiting, but today 3x continued. She received therapy and infusion due to dehydration. The veterinarian is told me that Masha jave gastritis, but her back legs began to crack and she was totally depressed. can you tell me what you think?

1 Answer

Most Helpful Answer

Ann Dion, DVM

Answered By Ann Dion, DVM

Veterinarian

Published on December 28th, 2018

Hello and welcome to Petco Pet Education Center, formerly Petcoach.

Continued vomiting is concerning for a blockage in the GI tract.

I recommend the following:
1. x-rays of her stomach and intestines to see if there is a blockage
2. Ultrasound of her abdomen if x-rays are unclear or don't give an answer
3. If seems just like gastritis- talk to your vet about anti-nausea medications and if she needs to be on IV fluids.

I am worried she either has peritonitis or a blockage in her gut.

The bloodwork that you have included is unremarkable. No concerns.

Best of luck with Masha, I hope she feels better soon.
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