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Why is my dog throwing up yellow-green and refusing to drink?

Updated On September 23rd, 2025

Pet's info: Dog | Pit Bull Terrier | Female | unspayed | 1 year and 1 month old | 57 lbs

My dog woke me up making a funny noise, almost like a gulping sound, then she threw up twice. The throw up was a really bright yellowish-green color. I tried getting her to drink some water but she refuses. No changes in her diet or environment. Should i be worried and is there anything i should be watching for??

4 Answers

Most Helpful Answer

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Answered By Makenzie Kurth, DVM

Veterinarian

Published on August 8th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! Just like in people, there are many reasons a dog might vomit including eating something new/different, toxin, infection, organ disease, cancer, or other.

 Pick up the food and water and monitor. Reintroduce water 4 hours after the last vomiting episode and a small meal 12 hours after the last vomiting episode. If it was just the one time, I’m not very concerned. If it happens multiple times tonight (say more than 4 episodes), it’s time to head to the emergency vet tonight or your regular vet first thing in the morning. Best wishes to you and Dizzi!

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Other Answers

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    Answered By Dr. Kristin DVM

    Veterinarian

    Published on December 5th, 2018

    It sounds like Layla isn't feeling very well. There could be many causes for this. She could have picked up an infection, she could have eaten something that was toxic or caused irritation in intestines. She could have an autoimmune condition. The problem is that these clinical signs are fairly non-specific. They could be caused by many different things. Without more information, such as a physical exam and possibly bloodwork, there is no way to guess what could be going on or to treat it appropriately. After 5 days with no improvement, I strongly recommend Layla be seen by a veterinarian to determine what can be done to help her. Thanks for using Petco Pet Education Center, formerly Petcoach.

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    Answered By Destini R. Holloway, DVM

    Veterinarian

    Published on September 19th, 2017

    Poor guy. It sounds like Zatch is really ill and in need of medical attention at this point. He could have a number of things causing his vomiting including a foreign body obstruction, a viral or bacterial infection. I would highly recommend taking him in to your vet for diagnostic testing (i.e. fecal exam, parvovirus test if he is not fully vaccinated, +/- radiographs). He likely won't get better until we find out the underlying problem and treat that specifically. I would not recommend trying to give him anything else by mouth for fear that this will only cause him to vomit more. His vet will likely give injectable medications to ensure he gets his treatment and also anti-vomit medication to help with his nausea. I sure hope that Zatch feels better soon. Best wishes and take care. Here is a financial assiatnce website link if needed. Best of luck!http://m.humanesociety.org/animals/resources/tips/trouble_affording_veterinary_care.html

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on November 10th, 2016

    It sounds like your pup has a GI illness, pancreatitis, may have eaten something rotten, or could have a foreign body stuck in her GI tract. Given that she will not eat or drink, and has been vomiting for the last couple of days, she needs to see a vet immediately. The yellow vomit is likely due to bile in her stomach. It's quite serious that she won't drink, and she could become dehydrated. You should take her into a vet right away. The vet can give her IV fluids for hydration, can give her a shot to stop the vomiting, and any other treatment they deem necessary.

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