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My senior dog is throwing up yellow foam. Should I change his food?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 10 years and 1 month old | 10 lbs

I have a 10 yr. old, 10lb Maltese poodle mix and for the last three mornings he's been throwing up yellow foamy mucus. He eats dry dog food twice a day not quite a cup divided, drinks his water, stools are hard and pees regularly. He does like to bury his treats outside in the dirt and then dig them up which I can't catch a most the time doing it so he's eating some dirt. Is there something I can try to stop this vomiting issue? Should he be on senior dog food?

2 Answers

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on February 23rd, 2020

I would recommend having Oliver examined by a vet. Vomiting in an older dog is always a little concerning for issues such as liver or kidney disease, pancreatitis, IBD, etc. Once he isn't vomiting any more, switching to a senior diet is a good idea.

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on May 20th, 2020

    Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Bailee. Poor gil. This vomiting isn't normal and can be a sign of a larger problem. Senior dogs can be prone to diseases such as kidney failure, heart disease, liver disease, diabetes, and cancer, all of which can cause the vomiting. Oftentimes, vomiting can be the first sign something is wrong. I'd have her seen by a vet in the morning for a physical exam, geriatric blood panel, and urinalysis. I hope this helps!

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