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Explosive Diarrhea in Dogs: Causes & Remedies

Puppy squatting on grass

There's one thing worse than a dog with diarrhea, and that's a dog with explosive diarrhea.

When these dogs need to go, there's no stopping them, which is bad news for the living room carpet. On a more serious note, explosive dog diarrhea may result in dehydration, which needs urgent treatment or it can lead to organ failure. With this in mind, if a dog has explosive diarrhea, watch them carefully and if they seem sick, contact the vet.

Why do dogs get explosive diarrhea?

The hallmark of explosive diarrhea, as the name suggests, is the dog suddenly passes a large volume of watery stool. Should this happen, the dog has little control and may have accidents in inconvenient places. Don't be cross with your pet pal because they can't help it!

When a dog has explosive diarrhea, this is down to a problem in the small intestine. This part of the gut works to digest food and absorb fluid. Infection or inflammation of the small gut can stop it working properly, and water that normally passes into the bloodstream builds up inside the gut. It passes as explosive diarrhea.

Causes of explosive dog diarrhea

So your dog has explosive diarrhea — but why? In young dogs, the most common causes are parasites. That happens because they pick everything up in their mouth. Topping the list of likely causes are Giardia (a single-celled parasite present in soil) and internal parasites such as hookworms, tapeworms, or roundworms.

Beware the scavenging dog that chows down on rotting food, as their explosive diarrhea may be due to bacterial infection like salmonella, campylobacter, or clostridia. But more than this, any factor that causes the gut wall to swell and reduces its ability to absorb fluid can cause explosive diarrhea. In rare cases, lymphoma (a type of white blood cell cancer), inflammatory bowel disease, or pancreatitis may explain why a dog has explosive diarrhea.

 

TOP 5 CAUSES OF DIARRHEA IN DOGS:

  1. Parasites
  2. Dietary indiscretion (e.g. eating rotten food, eating garbage, eating too much)
  3. Sudden changes of diet
  4. Food intolerances
  5. Allergies 

Click to learn more about the most common causes of dog diarrhea.

 

Any dog diarrhea that goes on for a long time has the potential to change into something more explosive. This happens when the number of helpful bacteria in the gut become so low that it allows an overgrowth of unhelpful bacteria and low levels of B-vitamins in the gut wall (which are necessary for healthy digestion.)

What to do if your dog has explosive diarrhea?

The big worry with explosive diarrhea is that losing all that liquid makes the dog dehydrated. Watch your best buddy and make sure they are drinking plenty of water and keeping fluids down. If you suspect they are losing more fluid than they are drinking, contact a vet immediately.

First 24 hours: If the dog has explosive diarrhea but is otherwise bright and bouncy, watch them carefully for deterioration. Fast them for 24 hours, which gives their gut a rest. Always make sure they have constant access to clean drinking water.

Adding in a natural soil-based doggy probiotic + prebiotic supplement once a day may help get your pup back in shape faster. An extra supply of friendly gut bacteria and prebiotics for them to feed on ensures your pup's digestive system keeps the number of good bacteria on top of things.

After 24 hours: offer small amounts of bland food four to six times a day. Choose foods that are easy to digest such as cooked chicken breast or other white meats, along with some boiled white rice or potato (no dairy products, please!).

If all goes well, keep the dog on bland food until they are regularly producing a formed stool. Then take a few days to gradually transition back onto their normal food, and avoid any sudden changes of diet.

When to see the vet

If you're worried always listen to your gut instinct and contact the vet. Be aware that dehydration can cause serious, life-threatening complications such as kidney failure, so when in doubt seek professional advice. Those dogs at greatest risk of complications are pups, the elderly, or those with an underlying health condition—so again, for peace of mind call the vet.

Dogs become dehydrated when they lose more fluid than they take in. So, if a dog has explosive diarrhea but isn't drinking, or drinks but vomits, then see the vet. By the time dehydration is detectable (when you lift the dog's scruff, let it go, and the skin is slow to ping back), the dog is already at least 5% dehydrated.

Also, if the dog seems unwell or sick in other ways, this is a red flag signal to visit the vet. For example, if the dog is vomiting, feverish, lacking in energy, restless, or refusing food, these are all reasons to seek help. The biggest red flag of all is if the dog passes blood in its stool. Bloody diarrhea requires immediate attention.

And finally, if the dog is bright but the explosive diarrhea doesn't settle after 24 hours—you guessed it, see the vet.

What will the vet do?

A vet will check the dog over to work out if the cause is straightforward or not. They also assess if the dog is coping or requires supportive care with the patient hospitalized on intravenous fluids. For those dogs that are less sick, treatments to give at home include fluid replacement drinks, probiotics, vitamin supplements, and antibiotics.

For more serious cases of explosive diarrhea, a diagnostic workup may be required. This may involve blood tests, faecal analysis, and an ultrasound scan or x-rays of the belly depending on the vet's suspicions. The idea is to identify the underlying cause since treating this is the key to settling the diarrhea.

The Solution to Your Dogs Explosive Diarrhea

Young dogs and scavengers are most at risk of explosive diarrhea. It's almost impossible to stop a puppy from rooting around in soil and swallowing stuff they shouldn't (which can certainly cause diarrhea), but do your best. Distraction tactics work well, such as squeaking a toy when they show an interest in something they shouldn't. The same can be helpful for scavengers.

Interested to find a long-term solution?  

Click below and find out how to normalize your dog's digestions, restore gut health & boost immune health.

Read more about diarrhea in dogs


The article is written by Pippa Elliot, BVMS, MRCVS on October 24 2020. Medically Reviewed by Joanne Istille.

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