Pooping Blood and Vomiting in Dogs

Why is my dog pooping blood and vomiting?

Most common conditions

Hemorrhagic Gastroenteritis / Parvo / Whipworms

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Rated as moderate conditon

48 Veterinary Answers

Most common conditions

Hemorrhagic Gastroenteritis / Parvo / Whipworms

Why is my dog pooping blood and vomiting?

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What is Pooping Blood and Vomiting?

As a pet parent, you are certain to be alarmed if you observe your dog vomiting and pooping blood. Some dogs will vomit and have bloody diarrhea, but continue to eat or drink. If you observe that your dog is pooping blood and vomiting, but refuses to eat or drink, get him to the vet immediately. While some causes of your dog pooping blood and vomiting are not serious, others are life-threatening. It is always best to err on the side of caution. Several conditions can cause your dog to have a bloody stool and vomit:

  • Hemorrhagic gastroenteritis
  • Intestinal obstruction
  • Parvovirus
  • Parasites
  • Changes in your dog’s diet

Why Pooping Blood and Vomiting Occurs in Dogs

Hemorrhagic Gastroenteritis

Hemorrhagic gastroenteritis is characterized by sudden onset of bloody diarrhea in a dog with no previous issues. Vomiting may or may not accompany the bloody diarrhea. The refusal to eat (anorexia) and listlessness have also been observed. Dehydration can soon take place as the body empties of liquid and it is not replaced. This is a situation in which you need to get your pup to the vet as soon as possible. Shock can occur without treatment. Stress is thought to be a factor in this condition. Toy breeds are thought to have a higher instance of hemorrhagic gastroenteritis, especially between the ages of two and four. While these dogs have a higher occurrence of the disease, any breed of dog can acquire it. Gender is nonspecific as well. 

Intestinal Obstruction

Because dogs eat most anything, intestinal obstructions can be fairly common occurrences. An intestinal obstruction can be a partial blocking of the small intestines. Blood supply to the GI tract can be cut off or compromised during a blockage, and, without treatment, sections of the intestine may die. Perforations may occur as a result. Bacteria can seep into the gut, causing septic peritonitis. Unfortunately, emergency surgery is often required to eliminate an obstruction. 

Parvovirus

Parvovirus is a highly contagious viral infection that normally affects young dogs (ages six weeks to six months) that have not completed all their immunizations. Transmission occurs when a dog comes in contact with contaminated objects – and these objects can be food bowls, shoes, clothing, even the ground. The virus can live for up to a year, and it is not easily eradicated. Parvovirus is resistant to most household cleaners; bleach is basically the only cleaner strong enough to kill parvovirus. Parvo can be transmitted when a dog licks any material that has come in contact with the virus – including feces – and then licks himself. Initial symptoms include fever and lethargy. Dogs may refuse food and water. Within 48 hours, profuse vomiting and diarrhea will begin. Parvo has a higher occurrence in Rottweilers, German Shepherds, and Dobermans.

Parasites

One of the most common causes of bloody stool in dogs is parasites. Hookworms, roundworms, and whipworms are known to cause blood in the stool. Coccidia is another parasite that has been associated with bloody stools. No breed is any more susceptible to parasites than others.

Changes in Your Dog’s Diet

Overeating, indiscriminate eating, or changing your dog’s diet may cause stress on the gastrointestinal tract, leading to bloody stools. Food allergies can also cause bloody diarrhea, and unintentionally eating spoiled food can cause your dog to have bloody diarrhea and vomiting as well.

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What to do if your Dog is Pooping Blood and Vomiting

If you suspect your dog has parvovirus, get him to the vet immediately. Puppies can dehydrate quickly and sepsis can set in. Once your dog is vomiting and experiencing diarrhea, the virus has already progressed greatly.

If your dog has hemorrhagic gastroenteritis, your vet will have to do many tests to eliminate other possible causes. There is no known exact cause of the condition. However, a dog that has had one incidence of hemorrhagic gastroenteritis is likely to have more episodes. You may actually see evidence of parasites in your dog’s bloody diarrhea. Your vet will take a stool sample and examine it for parasites. If they are present, he will prescribe dewormer. If your dog has an intestinal obstruction, he will be in a good deal of pain in addition to the bloody stool. Your vet may have to do x-rays in order to confirm the diagnosis. Experts recommend gradually changing your dog’s diet in order to avoid gastrointestinal stress.

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Prevention of Pooping Blood and Vomiting

Always take caution when taking your unvaccinated dog into high-traffic areas such as the vet or groomer. Also, be aware that parvo can live on the ground for up to a year. Your dog will receive the last vaccination against parvo at around sixteen weeks. Until then, take extra caution around strange dogs. Stress is a known factor in dogs with hemorrhagic gastroenteritis, so try to minimize stress in toy breeds. Keeping your dog regularly wormed will help prevent intestinal parasites. 

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Cost of Pooping Blood and Vomiting

Treating parvovirus in dogs can be an expensive treatment ranging from $500 to $12,000. This cost will be dependent upon the stage of the virus when you get to the vet. The exam, initial tests and possible IV fluids can start at $50 and total up to $500. Medications to treat parvo can range from $60 to $114, and 24 hour care can cost up to $175. Multiple days in vet care can multiply this cost. The average cost to treat hemorrhagic gastroenteritis is $1100.

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Pooping Blood and Vomiting Questions and Advice from Veterinary Professionals

Need pet health advice? Ask a vet

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Ask a Vet

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Boxer Shepherd

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Two Years

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Unknown severity

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0 found helpful

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Unknown severity

Has Symptoms

Vomiting, Bloody Stool

We changed our dogs food and today I noticed blood in her stool. She is still very playful and eating and drinking. I put pressure on her abdomen and she doesn’t seem in any pain.

July 30, 2020

Owner

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Jessica N. DVM

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0 Recommendations

Hello- Thank you for your question. Sometimes with an abrupt food change dogs can develop diarrhea and colitis which will lead to some blood in the stool. If she is vomiting as well though I do recommend getting her into your veterinarian. There are many different causes of vomiting and diarrhea besides food change including infectious causes, G.I. obstruction, pancreatitis, or toxin ingestion. Even though she may still be eating and drinking dogs can become dehydrated quickly when vomiting and having diarrhea. Your veterinarian can run some diagnostics (x-rays and blood work) to assess the cause of her vomiting and diarrhea and provide IV fluids and anti-emetics to help her feel better. I hope she feels better soon.

July 30, 2020

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Schnauzer

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2-3

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Unknown severity

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0 found helpful

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Unknown severity

Has Symptoms

Puking And Pooping Blood/Diarrhea

My dog was on a 3- day car ride (we were moving to a new state). He is really anxious on cars and he pooped blood and puke at the hotel. What should we do???

July 30, 2020

Owner

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Dr. Sara O. DVM

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0 Recommendations

Hello, Most likely this is from the stress of the move. Many times when you get to the new location this will stop. If your dog is not eating or drinking, it may be best to look for a vet along your trip. YOu can look for a calming supplement or probiotics to help with the stress and diarrhea. I recommend trying to find Calming Care as this is both a calming supplement and a probiotic.

July 30, 2020

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Schnauzer Maltese mix

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2-3 years old

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Unknown severity

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0 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Unknown severity

Has Symptoms

Pooping Blood, Puking

My dog is pooping blood and diarrhea after being on a 3-day trip while moving. He is really anxious in the car so we have him some Benadryl. What should we do

July 30, 2020

Owner

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Dr. Sara O. DVM

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0 Recommendations

Hello, Most likely this is from the stress of the move. Many times when you get to the new location this will stop. If your dog is not eating or drinking, it may be best to look for a vet along your trip. YOu can look for a calming supplement or probiotics to help with the stress and diarrhea. I recommend trying to find Calming Care as this is both a calming supplement and a probiotic.

July 30, 2020

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Pit Bull

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Seven Years

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Unknown severity

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0 found helpful

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Unknown severity

Has Symptoms

Vomiting

Dog has diarrhea with some blood and vomiting

July 27, 2020

Owner

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Dr. Michele K. DVM

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0 Recommendations

Thank you for your question. That can be caused by a number of things including an intestinal infection, dietary indiscretion, parasites, or cancer. Since you are seeing blood, it would be best to have your dog seen right away by a veterinarian. They will be able to examine them, see what the cause might be, and get treatment for them. I hope that all goes well for your dog.

July 27, 2020

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Chihuahua

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Seven Years

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Unknown severity

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0 found helpful

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Unknown severity

Has Symptoms

Vomiting And Bloody Diarrhea

We saw our dog had thrown up and had diarrhea with blood on it and we are really concerned.

July 24, 2020

Owner

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Dr. Michele K. DVM

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0 Recommendations

Thank you for your question. There are a number of possible causes for vomiting and bloody diarrhea, but it would be best if your dog was seen by a veterinarian right away. They will be able to examine your dog, see what the cause of this might be, and get treatment so that they feel better soon. I hope that all goes well!

July 24, 2020

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Sam

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dachshound

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12 Years

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Moderate severity

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1 found helpful

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Moderate severity

Has Symptoms

Diarrhea
Vomiting
Listless

I have a 12 year old dachshund that is vomiting bile and pooping blood on occasion (about once weekly). The next day he is running around like a puppy. I am still paying off a ridiculously high medical bill for him (he choked on a bone and then got pneumonia) and I am trying to avoid getting more in debt. I don't want him to be uncomfortable and I don't know how do help him.

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Sonya

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Maltese poodle

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3 Years

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Serious severity

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0 found helpful

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Serious severity

Has Symptoms

Diarrhea, Vomiting, Blood Diarrhea.

Hello, i need help, my dog was hit by a car a month ago, his legs where broken and i took him to the vet. He had surgery two weeks ago, unfortunately he does not look fine. He was not being fed at the vet, as i traveled out of the country and just found out. his would is septic and looks red, he is pooping blood and has diarrhea. He is also vomiting after eating. what should i do?please help.

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SUNNY

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Cocker Spaniel

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14 Years

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Moderate severity

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2 found helpful

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Moderate severity

Has Symptoms

Lethargy
Vomiting
Blood In Stool

Hello I have a 14 and a half Coker spaniel and he has been pooping orange soft bits with blood spots on the first day and I put Jim on a diet bit it didn't work so we took him to the vet on the third day.they injected him with antibiotic and gave us "naturabio" for home care. On the second day of naturabio my dog pooped again these orange thing he has not stopped pooping but with blood again. He has puked twice since the onset as well. E has one testicle that never dropped could it be cancer or something else?

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Spade

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Labrador Retriever

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14 Months

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Moderate severity

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2 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Moderate severity

Has Symptoms

Lethargy
Vomiting
Blood In Stool

Hello, my 14 month old Lab stared to have some small blood stools a few days ago. But has been the same energy levels, behaviour and happy. I thought it was something he ate. Today For dinner I gave him a third of his normal dinner which he ate. And he vomited a mix of food, blood, mucus, and grass 8 hrs after. He seems attentive and the same but lethargic. The last time he had water was around dinner time.

Cannanine