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Why is my puppy throwing up yellow foam and not eating or drinking?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 3 months and 24 days old | 15 lbs

Help! My puppy Kingston is usually eggcited bouncy happy puppy but he might have ate something and is now really not excited and has been throwing up all day today some weight if yellow foamy liquid. He had a homemade treat yesterday Greek yogurt,watermelon,strawberry forzen treat. He hasn't eaten all day today and i havent seen him drink much water. Im not sure if he has ate something he hasn't supposed to.

1 Answer

Most Helpful Answer

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Answered By Ann Dion, DVM

Veterinarian

Published on June 7th, 2018

Hello and welcome to Petco Pet Education Center, formerly Petcoach. Puppies can get dehydrated and very weak and sick very quickly if they are vomiting. Vomiting can be caused by something stuck in the stomach, or eating something that has just upset the stomach, or viruses that upset the stomach. I would strongly recommend having Kingston seen by a vet right away (emergency clinic if your vet is not available), as vomiting sick puppies can get very very sick and die quite quickly if not treated. Best of luck with Kingston!

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