What To Do If You See Blood In Dog Stool?

blood in dog stool

According to the survey half of the population have a deep affinity for animals. And, there is more than 60 percent of dog lovers amongst us. Since dogs are likable creatures, they easily find their way to the homes and hearts of humans.

blood in dog stool

The love for these furry animal has now transformed into sincere concern. Even the scientists have come up with new findings and practices to improve pet health. Hence, keeping your pets healthy and fine is a now an easy deal.

Today we are going to discuss a very crucial topic. Many pet parents have often flooded the internet with their pet care question. Once such topic is if you find blood in dog stool, then what treatment should you render to the four-legged member. To know what all you can do, keep reading.

Examine The Color Of Your Dog’s Stool

Do not panic if you see your dog pooping red stool. The first thing that comes into our mind is there is blood in the stool. And, many pet owners freak out in anxiety. So if you are in this critical scenario, then try to examine the stool. Determine whether the stool indeed contains blood or not. If you find any traces of blood, then this is what you have to do.

Witnessing blood in your dog’s poop can be disturbing. We typically associate blood with cancer. Fortunately, in dogs the chances of having stool cancer are negligible. But as a responsible pet owner, you should investigate the potential issue.

Hence make your dog poop on an absorbent white paper or paper towel. If you find the red tint diffuses from the poop, then your dog is suffering from Melena. The blood in your dog stool can appear due to various reasons. Problems like this may arise due to a change in the diet, or there may be other critical issues like Parvo.

Did You See Blood Or Mucus?

The medical term for blood in stool is Hematochezia or Melena. Pet parents usually find blood in their dog’s stool if there is a problem in the upper digestive or lower digestive system. As a parent, it is vital to know the difference between the two terms. That will help you to diagnose the problem quickly.

Thus in hematochezia, the blood in the dog’s stool has a bright red color. Which means the blood is fresh and it is coming out of a  lower section of the digestive system. Hence, the blood coming out of the colon or the rectum mixes with the dog’s stool. Else there would have been a few drops of blood when your dog defecates.

But in the case of the melena, the feces appears to be asphalt black or tarry black. Hence it signifies the blood is coming from the upper intestine. And pet owners need to know that melena is more critical than hematochezia. Since Melena is hard to recognize as dogs often poop dark stool which doesn’t contain blood.

Cause Of Bright-Red Blood In Stool

As we know hematochezia is a mixture of fresh blood and dog’s stool. But unlike humans, dogs are not prone to hemorrhoids. And, the bright red blood in stool frequently comes from your dog’s colon or rectum. Thus it is necessary to take vet advice immediately. So let’s see a definitive list of issues that can cause hematochezia in dogs.


Parasites are one of the most critical issues that can trigger blood in the stool. Hookworms, whipworms, and roundworms are the most typical parasites that can cause blood in the stool.

Apart from blood appearing in your dog’s poop, there are other symptoms as well that indicates your pet has worms. Various protozoans such as coccidia can also trigger bloody stools. Thus take your pet to the vet  for diagnosis. After that, the vets will give specific dewormers to eradicate these harmful organisms.


Overheating or a change in the diet can also affect your dog’s colon and triggers bloody stools or diarrhea.The dietary indiscretion can also have a similar effect on your pet. If you frequently change your dog’s diet then do it gradually. A sudden change in the diet can cause vomiting or diarrhea. The problems like this can also occur if you are giving human food. Otherwise, blood can also appear if your dog is eating rotten foods or the food which they are intolerant to.

If your pet is suffering from mild stomach upset then examine your dog’s hydration level.  You can check the hydration level by inspecting the elasticity of the skin. Also, verify the color of your dog’s gum. Now depending on your dog stature and size don’t give food for at least 12 to 24 hours. Keep your pet dog on low-fat meat and a bland diet of rice.

Moreover, you can give probiotics, yogurt or plain canned pumpkin. Make sure you don’t switch back to the previous diet. As it may again upset your dog’s stomach.


It is a dangerous virus and typically puppies are its host. Generally, the German shepherds or Dobermans are more susceptible to parvo. The parvovirus symptoms include diarrhea, lethargy and loss of appetite, and blood in dog stools. As this disease can be fatal, so you need to visit a vet immediately.

Rectal Injury

Sometimes dog ingests sharp objects like stick, bone or stone that can cut the intestinal lining. You often see these sharp objects with the stool as it made its way through the dog’s digestive system.

In this case, you can see the bright blood, and it will stop after sometime. Hence prevent your dog from playing with sticks and other sharp objects. If the sharp object doesn’t come out of your pet’s system, then give him food that are rich in high fiber. Also, check if there is an injury in the anal gland. Examine for any protrusions and swelling.

If your dog stools have some trace of fresh blood, then there can be a rectal polyp. The rectal polyps grow abnormally, and whenever stool passes from that specific area, it will bleed. Sometimes you can see the polyps bulging out. But in most of the cases, polyps are hard to find, and that’s why an endoscopy is required. So it is necessary to bring your dog to the vet as the polyps can be cancerous.

Hemorrhagic Gastroenteritis

The hemorrhagic gastroenteritis is a disease that involves vomiting, diarrhea, and blood in dog stools. Most of the vet is still cannot found the actual reason for the cause of hemorrhagic gastroenteritis. Hence you need to take extra care of your dog. So give your dog proper medications and provide fluids.


Many pet owners are unaware that dogs also suffer from anxiety. And, in some situation, the blood in the dog stool can be caused because of stress. Dogs usually suffer from stress due to the addition of a new family member. If you board your dog to a kennel away from you, then stress can creep in them.

Problems can also arise if you bring a new dog in your house. Hence, these are some trivial events that can trigger colitis with bloody diarrhea with mucus. And due to this, your pet will have Irritable Bowel Syndrome. To treat, the issue pet owners need to give stress relief medicine. Also, take care of your dog’s diet and give fluids to prevent dehydration.

Dark Like Mucus In Dog Stools Because Of Melena

As pet owners are aware of the critical condition of melena. In this condition, the blood gets digested, and the mucus appears black and tarry. According to some of the owners, the stool seems to be a coffee grounds. Thus blood can be deriving from the internal organs of your dog. Since melena is a critical condition. So it is better to take your dog to the vet. Now lets see what are probable reasons your pet suffers from melena.

Excessive Use Of NSAIDS

If your dog is under the medication of the aspirin or Rimadyl, then he may have developed ulcer. Dogs who have bleeding ulcers have dark stools. If the blood is coming out of the stomach, then inform your vet quickly. And keep your dog under proper treatment .

Blood Clotting Disorders

Numerous canine conditions may cause blood clotting problem or bleeding. If your dog is suffering from such a disease, they will have purple skin that can suggest internal bleeding. This type condition generally occurs if your dog accidentally consumes Rat poison. If you think that your pet may have eaten rat poison go to the vet as quick as possible.

Post-Surgery Complication

If your pet has undergone surgery and had blood in their stool, then call the vet without wasting a second. Because there can be a possibility of internal bleeding.  And you can notice that such complication appearing within 72 hours post surgery.

Tumors Or Cancers

Whenever you see blood in the dog’s stool, then there can be a possibility of cancer or tumor. These things are quite common in older dogs, and they are prone to cancer and tumors which is quite natural.


The blackish stool or dark mucus can also trigger if you give Pepto-Bismol to your pet. The medication turns the stools black for some time. You can easily find about the side effects as it is provided on the bottle.

Hence read it carefully before giving Pepto-Bismol to the dog. As soon as witness these symptoms immediately stop giving the medication. The bleeding will stop and the stool will become normal. Pet parents should also know that Pepto-Bismol can trigger gastric bleeding. Thus you should consult your vet before giving this medicine to your dog.

Ingestion Of Blood

You can also see blood in the dog’s stool due to the intake of blood. For example, your dog may have a mouth injury or bleeding nose. And due to this, the dog swallow the blood.

There can be another valid reason if your dog licked a wound and in this way, the blood got inside their digestive system. Also, blood can also appear because of the bleeding ulcer as well. Thus it is essential to see your vet if you could not diagnose the issue.

Treatment Of Stomach Flu With Blood Or Mucus In Dogs Stool

Since stomach flu or hemorrhagic gastroenteritis can be identified by blood in the stool or vomit. The leading cause of the problem is because of the foodborne diseases.

As it is a serious issue and can prove fatal. It is better to take advice from your vet. To diagnose the issue pet owners should know the potential symptoms. Hence look at the list of symptoms that can occur due to stomach flu.

Some Noticeable Symptoms

  • As your dog is suffering from stomach flu, it  will have frequently puke. And you will also see bloody diarrhea. But there are other symptoms as well that will assist to understand the illness better. Due to continuous vomiting your dog will be lethargic and loss of energy.

  • Your dog will lack interest in playing, and it will suffer from listlessness.Most of the pet owners also report that their dogs also suffer anorexia. It is a state in which your dog will show uncharacteristic behavior.
    Thus it can be in a poor mental and emotional state. Hence examine your dog and notice these changes that your pet is going through. Weight loss is quite common if your dog is suffering from stomach flu. You may also witness fluid loss and dehydration by checking the skin condition of your dog.

  • The dog also has an electrolyte imbalance in their body at the time of hemorrhoids. Pet owners can also see the signs of hemoconcentration in which increases the solid content on their dog’s body. And the dog also goes through hypovolemic shock as well. So these are some potential symptoms that you can witness if your dog is suffering from stomach flu.

Cause Of The Infection

The gastroenteritis infection generally occurs due to pathogens which include.

Bacteria such as  Campylobacter, E.coli, Salmonella, Clostridia which can trigger stomach infection. There are viruses as well like Parvovirus as discussed above and Canine distemper.
Stomach Flu can also occur because of the presence of the fungi in your dog’s digestive system.

Also, there are few parasites as like Roundworms or Hookworms Coccidia.
In these list of micro-organism the Salmonella, E.coli are the fatal pathogens. Since these pathogens can easily pass from animals to humans. Salmonella is also a dangerous pathogen that attacks the intestinal tracts of your dog.

Gastroenteritis can also occur due to a sudden change in the diet of your pet. Because some food can be toxic for your dog and it can cause bowel irritation. Hence it can directly affect the immune system. Some dog also suffers from Eosinophilic Gastroenteritis.

It is a chronic illness that can occur if your dog is allergic to some specific food. Pet owners also witness gastroenteritis because of stress, ulcers, and abdominal disorders. These type of diseases are quite common in smaller dogs as we saw it earlier.

How To Diagnose The Stomach Flu h3

Common pet owners will have a tough time to diagnose the gastroenteritis. Hence have a look at the diagnostic process as given below.

Past Medical History
First, check the medical history of your dog. Examine if there is a  physical problem like tumors, intestinal blockage or ulcers etc. Have proper information about its progression, severity of vomiting and diarrhea. Check the vaccination record as it helps to rule out parvoviral infection.

Do A Skin Test

With the help of physical observation, you can determine the severity of the dehydration. To check abdominal pain or abdominal obstruction examine the abdominal palpation.

You may also verify the mucous membrane to know more about hemorrhoid. You can also get information on dehydration by checking the cardiovascular function as well. Also, you can examine whether there is blood in the vomit or stool as well.

Perform A Routine Test

If you cannot diagnose the issue, then do a routine test of your dog. Thus do a biochemical test for the liver, kidney and blood protein. You can also perform Radiographs or endoscopy to track any tumor, ulcer or any other physical obstruction.

Study The Fecal Residue

Make sure you have a proper report of your dog’s stool. And identify if there is any virus or pathogens present in the feces sample.

Treatment For Bloody Diarrhea Due To Stomach Flu

After undergoing the treatment dogs recovers well and responds quite positively. The course of treatment depends upon the magnitude of the illness. So here are some effective solutions

If your dog is suffering from diarrhea, then give them Slippery elm bark. The medication does not have side effects and it can fight hematochezia that generally occurs due to colitis.

You can also provide GastroElm Plus which consist of 80 percent of the elm bark residue. The medicine is a benefit for dogs and horses as well. With the help of these medicines, you can stop vomiting and diarrhea.

Things To Do If You Witness Blood In Dog Stool

If you find blood in your dog stool then see a vet immediately. Supposedly if  your dog is vomiting, lethargic then head to consult an emergency veterinary once.

Don’t forget to bring fecal sample so the vet can immediately diagnose the issue. For getting accurate test results the stool sample should not be old more than 12 hours. If you are witnessing the symptoms of colitis, try to give a bland diet to the dog.

Some Useful Tips To Prevent Stomach Flu

Most of the vets advice to give more importance adding intestinal microflora via food. For instances, you can give probiotics and prebiotics food to your dog to prevent stomach infection. If dog owners are inclined to homemade diets, then provide quality food with optimum energy to your pet.


After reading the article now, you have some knowledge about the issue. Hence now you know what are the necessary steps that need to be taken to prevent discharge of blood with your Dog’s stool. Also, make sure that this article is not an alternative to the veterinary advice. If you see the problem is critical then do consult with your vet as quickly as possible.

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