What to do if my puppy has diarrhea?

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So, what to do if my puppy has diarrhea?

Eww! What is that smell? Let’s just say that if your new puppy has diarrhea, you  will know and you will know quickly. But what should you do and how can you help?  

If you find yourself in this all-too-real situation, don’t fret. We’ve got your back and can  help with a solution to get your puppy (and yourself!) out of trouble.  

To start, it’s important to know what causes diarrhea in puppies.  

A few common causes of diarrhea in puppies include:  

  • Ingestion of toxins, garbage, or foreign bodies
  • Parasites  
  • Bacterial or viral infection 
  • Change of diet or food intolerance
  • Puppy Stress 
  • Developing GI tract 

Let’s discuss each of these causes individually and how to get your puppy’s digestive  system back on track. 

Your puppy ate what!? 

Puppies are notorious for eating things that they shouldn’t.

Things puppies shouldn’t eat  (but could easily get into) include chocolate, grapes, gum (especially sugar free gum that  includes Xylitol), cleaning products, fertilizers, automobile fluids, essential oils, and  batteries.

All of these household toxins can affect your puppies metabolic,  gastrointestinal (GI), musculoskeletal, cardiovascular, respiratory, and nervous systems. 

Garbage should not be ingested by puppies for many reasons. There is the chance of  spoiled food having an adverse effect on a puppy’s gastrointestinal system and may  include other toxic items or foreign bodies. 

Foreign bodies are objects that should not be eaten by puppies that can get stuck in  their digestive tract. This includes anything from socks, to soap bars, to jewelry, chicken  bones, etc. 

In addition, some plants, flowers, and vegetation can be poisonous for dogs. You can find  more information about these in the links below. 

Of course, you will do your best to prevent all of this, but in the event that your puppy  has ingested something they shouldn’t have, it is important to call your vet immediately. 

If it seems like there is lack of time, call an emergency vet so they can walk you through  the appropriate at-home procedures. 

Change of diet or food intolerance 

Changes in diet can cause a puppy to have diarrhea, which is why it is always  recommended to slowly change your puppy’s food over a one-week period. 

Puppies can also have food allergies and intolerance. If your puppy’s diarrhea started  after a change in diet, your veterinarian may recommend a diet test to help rule out  which ingredients are causing a problem for the puppy’s GI tract. 

Bacterial and viral infections

Puppies’ immune systems are still developing, which means that they are more  susceptible to getting infections. Examples of some bacterial infections include: 

  • Salmonella
  • E. coli,
  •  Clostridium.
  • Some common viral infections include: parvovirus,  distemper virus, and coronavirus. 

Any of these infections require veterinarian attention. Some infections can be milder  than others, but if your puppy has a bacterial or viral infection, they will usually have  more symptoms beyond diarrhea including vomiting, bloody diarrhea, loss of appetite,  and general lethargy. 

Developing GI tract

The simple fact that puppies’ digestive systems are still developing makes them more  susceptible to gastrointestinal irritation.

They are born with a naive gut and rely on their  mother’s colostrum to gain maternal antibodies that help fight infections.

They do not  have the immunity or tolerance that adult dogs do and may be more sensitive until they  mature. 

Puppy stress

Are you stressed about having a new puppy? Remember that your puppy is likely  stressed too after moving to a new home away from its mama! 

An upset stomach due to stress can lead to diarrhea in puppies, just like it can in humans.  In this case it is important to monitor your puppy and provide supportive supplements.

It  is likely not an emergency unless it does not resolve and the puppy becomes dehydrated. 

Puppy parasites 

Puppies and parasites seem to be attracted to each other. Puppies can contract parasites  in utero ( inside the uterus) or from their environment. An example of some common parasites in puppies include:

  • roundworms,
  • hookworms,
  • whipworms,
  • coccidia, and giardia.
  • These are all serious  infestations and require veterinary attention. 


Help your puppy and their developing gastrointestinal tract start life off strong by  providing them with probiotics. A good, healthy gut early in life can help prevent and  treat cases of puppy diarrhea. 

FullBucket is the first company to create an all-natural, veterinarian-approved probiotic  for puppies under high-risk for digestive disease, diarrhea, parvovirus, and general  stomach upset. 

This probiotic paste for puppies was specially designed to support the balance of  beneficial bacteria in the puppy digestive tract and aid in immune defense, as it includes  parvovirus antibodies and the yeast-based powerhouse, Saccharomyces boulardii

Administer this probiotic paste in 2-4 cc increments twice daily for 4-8 days, or as  recommended by your veterinarian and your puppy’s diarrhea will be gone in no time!

Best Probiotic for Dogs with Diarrhea

Best Probiotic Paste for Dogs

FullBucket Puppy Probiotic Paste is a highly concentrated yeast-based formula that supports early gut and immune health in puppies. With probiotic, prebiotic, dried egg product, digestive enzymes & L-glutamine. 


    • The first and only gut health supplement of its kind, the paste supports the developing GI and immune system in puppies
    • Naturally supports your puppy’s health
    • Supports early immune system health
    • Maintains proper gut flora


  • 1.25 Billion CFU’s of Saccharmoyces cerevisae boulardii, a yeast strain of probiotic that is safe to use during antibioitc therapy
  • Probiotics – to support a healthy immune system
  • L-Glutamine – Helps maintain a healthy intestinal tract
  • Prebiotics – Support a healthy microflora
Top-quality Probiotics for Puppies - Dog Food Specialist



  • All-Natural
  • Microencapsulated for maximum protection and efficacy
  • Non GMO
  • Vegan
  • Gluten Free
  • 100% overdose free

What to do if my puppy has diarrhea? - To sum up

A recent scientific study reports that 70% to 80% of all illness begins in the gastrointestinal tract!

Now that you understand more about the importance of a probiotic for puppies and you can use this knowledge and tools such as FullBucket’s Puppy Probiotic to help them live a happy healthy life.

Did you know that there is an all-natural method to relieve inflammation, pain, and discomfort in dogs that works better than pharmaceuticals? Check out our page on Canine Cush for Dogs.


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