Vomiting is a common sign you should be very careful with. Certain colors of vomit can even point to specific medical conditions that your dog might have. There are multiple explanations that you’ll want to be aware of.

Sometimes vomiting is fine when your dog ate too much or something unusual like a lot of grass. But some symptoms like vomiting brown liquid can be a big warning sign. This sign is nothing to worry about if your dog ate a lot of brown poop before. If not, we suggest visiting your vet as soon as possible. So why is your dog vomiting brown liquid?

Blood in vomit can cause the vomit to turn brown. It could be internal bleeding wounds or intestinal blockage. All of this can be cured if you visit your veterinarian on time. If you are lucky, it could be gastroenteritis or brown food that your dog ate before vomiting.

If you are interested in knowing more about this problem keep reading this article.

Dogs and Vomiting

Vomiting is not always a sign of serious illness, but it is something that you will want to take notice of with your dog. If your pooch starts throwing up, you’ll definitely need to take it seriously. This could indicate that your canine companion has some health problem that needs to be addressed. The fact is that vomiting is associated with tons of different health problems.

Dog vomit can range from yellow to red, depending on what is wrong with the animal. This is a common sign of illness that you should never simply ignore.

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Reasons for a Dog Expelling Brown Liquid

Below we have laid out some of the most plausible reasons that your dog might be vomiting brown liquid.

1. Intestinal Blockage

One of the more serious explanations of brown vomit in dogs is an intestinal blockage. This typically occurs when a dog swallows something that its body cannot digest. It might be because of the material of the object or the sheer size. Either way, there is the potential for serious health complications.

An intestinal blockage is potentially life-threatening for your pooch, so you should absolutely take it seriously. When your dog’s intestines are plugged up, they won’t be able to defecate normally, which is a big problem.

Some of the other signs of intestinal blockage in dogs include:

  • Constipation
  • General muscle weakness
  • Bloating of the stomach
  • Lack of appetite
  • Whining in pain

The sooner you take your dog to the vet, the better their chances will be of making it through without any serious issues. If you notice these symptoms in your dog, you don’t want to hesitate. Rush right to an emergency vet clinic.

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2. Bleeding Ulcer

A bleeding ulcer is another possible reason for brown vomit with dogs. This can occur as a result of ingesting certain human foods, especially on a regular basis. This is why it is so important that you carefully monitor what goes into your dog’s body.

There are a number of other causes of bloody ulcers in dogs, such as anxiety, kidney disease, liver disease, and even bacterial infections. All of these problems can be life-threatening, especially without immediate and proper treatment.

If your dog has a bleeding ulcer, you may also notice blood in your dog’s diarrhea, lack of appetite, dark stool.

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3. They are Bleeding from Somewhere Else

Another explanation for your dog’s brown vomit is that they are bleeding from somewhere in their body. This could be due to anything from gum disease to ingesting poison. Internal bleeding is very serious and can be hard to know about until it is too late.

4. Your Dog Ate some Brown Food

It could be just a matter of your dog ingesting food that was dark brown in color. This is one of the more harmless explanations, but it’s a possibility nonetheless. It could indicate a serious problem, especially if that food was chocolate.

It is important for you to know which foods are considered to be toxic to dogs. This will allow you to respond appropriately to what your dog manages to get its jaws on. If you think your dog ate some brown food that is toxic to them, you should call your vet right away. They might recommend that you induce vomiting, or that you just bring them right in.

5. Your Dog Ate Poop

As gross as it is, your dog may have consumed its own feces or that of another animal. While this is usually not life-threatening, it can result in a bacterial infection. It is important that you try to take steps to prevent this. Always pick up after your dog, whether it is in the backyard or when going for a walk.

6. Gastroenteritis

A bad case of gastroenteritis is another possible reason that your dog is vomiting brown liquid. Hemorrhagic gastroenteritis, in particular, can cause this, and it has the potential to be quite serious. You’ll need to get your dog to the vet right away, especially if they start shaking or become lethargic. You might also notice blood in your dog’s stool, which is a sign that the condition has gotten really bad.

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brown vormit

When to See the Vet

It is important that you know when to go see your veterinarian. If your dog’s vomiting is persistent and/or getting worse, it’s probably a good idea to hop in the car and get your dog looked at. You also want to keep an eye out for blood in their stool, diarrhea, and breathing problems. All of these can be signs of serious illness.

By getting your dog looked at as soon as possible, you will minimize the risk to them. Sometimes it is just better to play it safe and take your dog in.


  • A dog’s vomit can range from pale green to red, depending on the cause.
  • It is important that you always take notice when your dog is vomiting, as there is a specific reason for it.
  • Brown vomit is sometimes indicative of an intestinal blockage, which is very serious and needs to treated immediately.
  • An intestinal blockage occurs when a dog swallows something its body cannot digest for whatever reason.
  • A bleeding ulcer can also produce brown vomit with dogs, which is equally serious and must be dealt with properly and quickly.
  • It is possible that your dog is bleeding from somewhere in its body due to a serious medical condition or injury.
  • This might just be a matter of your dog having eaten some sort of brown food.
  • If you suspect that your dog ate any chocolate or other food that is toxic to them, call your vet up right away.
  • Sometimes dogs will have brown vomit if they ate feces.
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Hi! I'm Anna and I´m a certified cynologist (KAU, ACW). Expert, blue cross volunteer, owner of Chinese crested kennel "Salvador Dali" and breedless friend called Fenya. "I can't imagine my life without dogs and I totally support the idea #AdoptDontShop".