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Why is my dog throwing up for 3 days and still not eating?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 7 lbs

My dog has been throwing up for 3 days and he hasn't been able to keep any thing down until today I have been giving him water in small amounts all day he has kept it down but he still won't eat anything

1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on September 26th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! Vomiting and loss of appetite can be observed with conditions such as gastroenteritis, pancreatitis, dietary indiscretion, gastrointestinal foreign body ingestion and obstruction, among other possibilities. For this reason, I highly recommend that you have Lucky evaluated by a veterinarian for further assessment and treatment as soon as possible as I am afraid he is likely becoming dehydrated. They would be able to check for these possibilities and also check his hydration status and give him medications to make him feel better. Good luck!

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