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Why won't my dog eat, vomits yellow bile, and is underweight?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Male | unneutered

Bear hasn't eaten his food for at least 1 1/2-2 days now. He's not even taking bites. Tried adding cheese, or oil, even an egg to try and get his interest. He won't even take treats. He does drink his water though. My other dog is in heat but we keep them separate as he isn't neutered. He already was underweight when I got him but now his hips are really starting to show He also threw up yellow bile this morning.

1 Answer

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on April 9th, 2019

Hello, sorry to hear about Bear. It sounds like he could have an upset stomach which can be causes by multiple reasons. In dogs, a dietary indiscretion (getting into trash, junk food, etc.) cans cause this most commonly. Other potential causes include ingestion of foreign material that could be causing an obstruction, in german shepherds a GDV (torsion of their stomach), and infections may cause this. Finally, liver, kidney or pancreas inflammation may cause this. Given that he has not had interest in food and has vomited, Bear is likely dehydrated and should be evaluated by his veterinarian to ensure and rule out the above causes for his signs. Please have Bear seen today. Hope this helps and best of luck.

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