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Is Your Dog Throwing Up Blood? Here’s What To Do

Reasons Why Blood May Be in Your Dog's Vomit

By June 12, 2015 | See Comments

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    PetCareRx Staff Veterinarian


Is Your Dog Throwing Up Blood? Here’s What To Do

Bad tummy problems are never any fun. Add blood in the mix and alarm bells should start going off. Find out here why your dog is throwing up blood and what you should do.

Every dog throws up from time to time, usually because they’ve eaten something they shouldn’t have and their body is trying to get rid of it. This type of occasional regurgitation is pretty common and generally harmless if unaccompanied by other symptoms. However, if you ever see your dog throwing up blood, it’s time to take action. Here’s what to do about a dog puking blood.

Why are they throwing up blood?

Throwing up blood -- also known as hematemesis -- is almost always sign that something is wrong. The bloody vomit may appear as red and fresh, formed into clots, or partially digested with a resemblance to coffee grounds.

The medical conditions that could cause your dog to throw up blood include:

  • Stomach cancer

  • Tumors of the stomach or esophagus

  • Stomach ulcers (which can be caused by some medications)

  • Kidney disease

  • Liver disease

  • Hormonal imbalance

  • Heartworm

  • Inflammatory bowel disease (IBD)

  • Toxin ingestion (certain plants or heavy metals)

  • Parasites

  • Bacterial or viral infection

  • Gastritis (chronic or acute severe vomiting)

  • HGE or Hemorrhagic gastroenteritis

  • Clotting disorders (ingestion of rat poison can cause improper clotting)

  • Trauma (including eating something that injures the gastrointestinal tract, also called foreign body ingestion)

What You Should Do

It can be scary to see your dog throwing up blood, but the best thing to do is stay calm and take your dog to the nearest veterinarian right away. Severe blood loss -- especially if it is happening quickly -- can lead to serious problems for other organs, and can also be fatal. A dog who is vomiting blood requires immediate medical attention.

A veterinarian will usually take a full history of your dog’s health, perform a thorough exam, and order certain health tests to determine the underlying cause of the bloody vomit as well as the degree of blood loss and your dog’s ability to clot blood. These tests may include complete blood work, x-rays, a clotting profile, internal organ function screening, and fecal analysis.

Treatment will vary depending on the underlying cause. In some cases, emergency procedures may be necessary.

This information is for informational purposes only and is not meant as a substitute for the professional advice of, or diagnosis or treatment by, your veterinarian with respect to your pet. It has, however, been verified by a licensed veterinarian for accuracy.


I have a black lab and he has thrown up blood today and he won't eat. His throat and stomach are skinny than usual. And I also don't have money to go to the vet. What do I do? Is he gonna die?


Our lab has vomited a little blood, twice, probably due to ibuprofen ingestion, 200 mg tid for 3 weeks. No jaundice. She won't eat anything, just drinks water. No more ibuprofen for sure! What can I do for her?


how are they now???


Its 2:00 overnight, no vets are working right now. What do I do?




And I don't know which dog it is..


I have 2 dogs I came downstairs to get a bottle of water and there was blood in throw up a lot of blood what do I do?


If you don't have money to go to a vet then you wasted a good dog.


If anything throws up blood something is wrong




My dog has been sucking up blood with another yellow liquid throughout the last night and during the day today and it smells fishy. He hasn't had anything to eat as he sucks it all up. What do I do?


You need to take your fur baby to the vet, your pup has worms. Sorry I am late just saw your post... A large percentage of puppies and kittens are born with microscopically small roundworm, or ascarid, larvae in their tissues. The larvae is introduced to the developing or right in the mother's uterus,via migration through the mother's tissues!
Roundworm larvae can also be transferred to the nursing pup or kitten from the mother's milk. If you do not take you puppy to the vet, the larvae will make their way to the intestinal tract where they can grow up to five inches in length.


Ms. Dakeisha, have you thought about your nearest AWA they normally will work with you. In addition, were did you get the puppy, was it a private owner, or a puppy mill? By the way why would you threaten readers that you will get rid of the puppy? When getting a pet of any kind they become a member of your family also, understand this that what you sais is a form of animal abuse and is a federal crime since Jan. 2016...


I agree, go to a vet asap, but hopefully this was done already seeing as to how it was 5 months ago...


You need to take your dog to a vet asap!


Hello. My puppy is vomiting blood and she's not eating for 3 consecutive days already. And she's also vomiting a worm, once. What do I need to do? Especial


My dog has just been sick and there was blood in it. She ate grass first to make herself throw up. She seems fine now. Should I wait and see if she's sick again or take her to the vet? Thanks


your dog bleeds from his digestive system take him to a vet immidiately


Hello Tiffany this is happening to my 14 diabetic dog as we speak. So nervous and our nearest vet is 4 hrs away. What do we do?? Did you figure out what's going on with your dog?


My dog 3 days ago had an accident in house. While I was out. Unusual for her. The next morning she had liquid diarrhea. The following night (last night about 2 am ) we smell bowel upstairs. She had liquid diarrhea again. But she seems fine. It kinda looked like mucus mixed in it. This morning I go downstairs. Spot on a rug looks wet with blood pockets. Unsure tho on dark rug. In the another room a find a liquid spot kinda reddish brown which appears to have more blood pockets or clots. Unsure. Please help I'm very nervous. No other symptoms.

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Dog Puking Blood at a glance

  • 1All dogs throw up occasionally, but blood in your dog’s vomit is a sign that something is wrong
  • 2Bloody vomit can be caused by a wide variety of health conditions, many of which are life-threatening
  • 3If your dog is puking blood, you should take them to the nearest veterinarian right away
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