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Why is my dog throwing up yellow bile with blood in the morning?

Updated On September 23rd, 2025

Pet's info: Dog | Border Collie | Female | spayed

My dog is throwing up bike with blood. Seems to be in the morning what should I do?

4 Answers

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on January 25th, 2017

That could be caused by excessive acidity in the gastric environment, building up during the night. You could try to feed her later in the evenings (and eventually earlier in the am) and see if that helps. Should the signs persist despite this remedy, a check up at your local veterinarian would be needed to make sure she is all right otherwise.

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Other Answers

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    Answered By Anna M., DVM

    Veterinarian

    Published on March 11th, 2020

    Hello, and thanks for using PetCoach. There are many possible causes of vomiting, but with your description of acting completely normal other than vomiting bile in the middle of the night, I would be suspicious of bilious vomiting syndrome. I'll direct you to a thorough answer on a very similar post! https://www.petcoach.co/question/?id=133889 Hope this helps!

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    Answered By Destini R. Holloway, DVM

    Veterinarian

    Published on January 29th, 2018

    Thanks for visiting Petco Pet Education Center, formerly Petcoach. If he is otherwise feeling well and eating well, he may have an acid reflux condition. THis is where the pet builds up too much acid in the stomach when the stomach is empty, causing nausea. I would suggest first getting some baseline bloodwork done at your vet to ensure there are no other underlying causes for this, then once Max's health is clear you can entertain the idea of starting an easily digestible diet, giving smaller more frequent meals (especially a late night meal), and antacids. You should be able to control Max's vomiting with these suggestions above. Best of luck to you and take care.

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    Answered By Rodrigo Roca, DVM

    Veterinarian

    Published on October 25th, 2018

    Hello, I am sorry to hear about Kiwi. Some dogs can experience these signs when they go to bed on an empty stomach. They may feel nauseous due to the bile and acid that is present in their empty stomach. I would recommend continuing to give her a bedtime snack, you may try offering her a larger snack to see if she just needs more food to help settle her stomach. If these signs do not resolve, or Kiwi becomes lethargic or stops eating I would recommend having her evaluated by a veterinarian to look for other possible causes. Hope this helps. Good luck!

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