Why Is There Blood in My Dog's Stool?

. 4 min read

Blood in dog stool can be quite alarming. Seeing bright or dark red in your puppy’s poop is disturbing, and it’s an indication there’s something wrong. The first order of business is to call the vet immediately. Take note of the color and the consistency of the stool so you can share this with the doctor. If possible, it’s best to collect a sample and bring it to your appointment so that it can be examined and tested if necessary.

What Does Blood in Dog Stool Look Like?
The appearance of blood in your dog’s poop is fairly easy to catch. However, there are two different sorts of bloody stool: red and very dark red.

Red Stool
When there are streaks of bright red or crimson in your dog’s feces, it’s called hematochezia. The stool can be solid, loose, or diarrhea, but in any case, the stool looks like it’s bleeding.

Dark Red or Black Stool
Bloody stool in dogs can also appear to be black and tar-like. This is called melena, and it indicates the presence of digested blood. Dark poop doesn’t always mean bloody poop, so look closely at the stool (sorry, we know!) and check to see if there’s a hint of red. You can also use a paper towel to pick it up and see if any crimson appears against the white.

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Called in sick today to look after Floki since both of us barely slept due to him having to go poop 💩 several times during the night. I’ve been withholding his usual food and giving white rice with steamed chicken in smaller portions and encouraging him to drink. But it looks like he got bloody poo just now so I go a vet appointment for tomorrow. I’ll have to take a holiday day but I can’t wait until Friday for his vaccinations booster app since it’s never a good sign to poop blood... I am now officially worried. 😟 At least he doesn’t look lethargic and he’s still in a good and playful mood, so there’s that. . . . #ftm #translife #queer #queerlybeloved #dogparent #dogdad #staffie #staffy #staffordshirebullterrier #dogsofinstagram #flokithestaffy #genderisdead #gendernoncomformist #genderqueer #rescuedog #adoptdontshop #sleepypuppy #hesagoodboy #gay #gayguy #lgbt #sickdog #bloodypoop #iamworried

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Why Is My Dog Pooping Blood?
Red or black-ish stool is a symptom, not a problem in and of itself. There are a number of underlying issues that could cause bloody stool in dogs, and what the issue could be is largely dependent on whether you are dealing with hematochezia (red poop) or melena (black poop).

Causes of Bright Red Blood in Dog Poop

  • Parvovirus (parvo), which attacks a dog’s digestive tract and can be deadly if left untreated.
  • Inflammation of the colon (colitis).
  • Ingesting a toxic substance, such as one of these from your garden.
  • Injuries to the rectum.
  • Stress, which can be caused by anything from serious trauma to a shift in environment.
  • Dramatic changes in diet, eating too much, or over-treating.
  • Impactions or infections in the anal sac or intestines.
  • Acute hemorrhagic gastroenteritis (AHDS), which is often accompanied by vomiting and diarrhea.
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Morning Paw Friends 🐾 Last night the vet said I have too much of Bacteria and Yeast in my intestines, so I got infection there. Lucky I didn't have any dysentery disease. Anyway, during morning walk this morning, there are some blood 💉 come out with my poop 💩, so mommy grab me and made urgent appointment with my vet. Now I'm at the hospital, waiting for ultrasound. Thanks for all your bless, will update later ♥️♥️♥️.. #beard #hospital #sickdog #sick #infection #bloodypoop #mistresszeeew #schnauzer #schnauzeroftheday #schnauzerlovers #miniatureschnauzer #schnauzerofinstagram #dog #dogofinstagram #dogoftheday #dogstagram #doglover #instadog #puppy #puppylove #pet #pup #instagramdogs #hound #petofinstagram #petstagram #doglife #ilovemydog #minischnauzer #schnauzer_of_Instagram

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Causes of Tarry Black or Dark Red Stool in Dogs

  • Aspirin or other anti-inflammatory medications is one of the most common causes. This can stem from an adverse reaction to dog medication or the accidental ingestion of pills meant for humans.
  • Tumors in the mouth, stomach, or small intestine.
  • Parasites, including hookworms and whipworms, which can lead to anemia.
  • Gastroduodenal ulcer in the stomach or the small intestine.
  • Ingesting a foreign object that tears the stomach or small intestine.
  • Liver disease, including canine hepatitis.
  • Hormonal disorders, including Addison’s disease.
  • Kidney failure.
  • Congenital bleeding disorders, including von Willebrand's Disease.
  • Inflammation of the pancreas (pancreatitis).
  • Liver disease.

What Should I Do If My Dog Has Bloody Stool?

Whether your dog’s bloody poop is red or black, it’s important to call your vet as soon as possible. The cause of blood in dog’s stool can be as benign as a little bit of stress, but it’s important to rule out other issues to keep your dog happy and healthy!