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This post was adapted from Dog Guide

It’s not always so easy to find out what’s causing diarrhea in dogs. If your dog is experiencing diarrhea, it can be symptomatic of many different things. What it means may depend on your dog’s surroundings, stress level, health level or behavior.

Here are the most common reasons for dog diarrhea…

  1. Dietary Indiscretion & Food Intolerance

Dogs tend to think it’s a good idea to eat absolutely everything in sight, and if it can’t be chewed, it should just be swallowed whole. The penchant for an animal eating everything they can fit into your mouth is also called dietary indiscretion. If you have a dog, you likely already know the extent of what we could put on a list like that. Depending on what they have ingested, it may irritate the stomach and bowel, causing a reaction. In many cases the dog will vomit, possibly eliminating most of whatever they have ingested. In other cases, the item may have to be removed by a vet.



  1. Environmental Changes

By simply changing your dog’s environment can add stress to him/her. If you take them out to a new house to visit a friend or to a show and they start to get diarrhea, they might be reacting to changes in their environment.

  1. Worm Parasites

Parasites can be a pet owner’s worst nightmare. These include the various types of worms that your dog can contract, such as tapeworm, roundworm, hookworm and whipworms. Puppies are prone to coccidia, a parasite that can be fatal in severe cases. Gardia, a parasite found in the intestinal tracts in dogs, can become fatal if not treated in a timely manner.

  1. Parvovirus Infection

If your dog has diarrhea accompanied by vomiting and a fever, it is possible they may have been infected with a parvovirus infection. This is an incredibly contagious disease that commonly attacks the intestinal system and less commonly attacks the pulmonary system, which can be fatal in young puppies.


  1. Bacteria

It’s inevitable that your dog is going to pick up and carry bacteria. At the same time, it’s not always easy to figure out where they picked up a certain bacteria, since so many of their behaviors can leave them prone. A list of bacteria that can affect your dog is long and full of names that are impossible to pronounce. Your dog can carry these bacteria without showing any signs of having them, so catching it can be rather difficult.

One of the most common bacteria you might see is salmonella. Just as it does for humans, it is a bacteria that will do its worst work on the digestive system, so expect to see symptoms like vomiting, diarrhea and a fever. Some diseases and parasites can be transmitted through dogs and humans, which makes it important that you are aware of the symptoms in humans, as well as in dogs.


What happens next when your dog has diarrhea?

What’s been presented here is far from a complete list so if your dog is experiencing only diarrhea, it is best to take them to the vet if it lasts for longer than a couple days. If they have other added multiple symptoms, it makes it even much more urgent to see a veterinarian.



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