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My dog ate chocolate and is now throwing up blood. Is this serious?

Updated On September 23rd, 2025

Pet's info: Dog | Siberian Husky | Male | neutered | 5 years old | 50 lbs

My dog is a smallish Siberian husky, he has eaten some milk chocolate and has started throwing up, it’s been like 18 hours now and has been throwing up for about 3 hours. But what gives me concern is the last time he threw up there was quite a bit of blood in it.

2 Answers

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on January 26th, 2019

Hello, thank you for your question about Brody. Chocolate can lead to toxicity in dogs depending on the amount ingested and the weight of the dog. The initial signs of toxicity are often vomiting/diarrhea due to irritation of the stomach/intestinal lining. With severe irritation the small blood vessels in the stomach/intestinal wall can rupture leading to blood being present in the vomit. Depending on the amount of chocolate ingested other possible signs of toxicity are possible such as agitation, elevated heart rate, tremors ,or seizures. If the chocolate was ingested about 18 hours ago I think it is unlikely that Brody will experience these symptoms at this time. Since Brody has been vomiting for some time now, I would recommend having Brody evaluated by a veterinarian so that they can perform an examination and discuss the need for additional diagnostics or treatments, such as anti-nausea medication. Hope this helps, good luck!

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Other Answers

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    Answered By Linda G, MS, DVM

    Veterinarian

    Published on

    Hello. I think it is time to head to the nearest veterinary clinic. I do not know if your dog ate enough chocolate to be fatal, but it appears enough was ingested to cause your dog to be ill. With chronic vomiting, small blood vessels called capillaries can rupture causing the blood to appear. More importantly, you really need to know if the chocolate has caused any organ damage. Please see a vet as soon as possible to make sure Brody will be OK. Thanks for using Petco Pet Education Center, formerly Petcoach.

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