Updated at: 14-01-2022 - By: petstutorial

Puppy puppies are very susceptible to infections and illnesses So when they experience nighttime diarrhea, it can be difficult to pinpoint the reason. We consider the possible causes and treatment options
Puppy raising can be stressful, especially for those who are new to puppy ownership. There are a lot of things to be aware of including following the schedule for vaccinations and getting foreign objects out of puppies’ mouths! If this wasn’t enough to be worried about, many puppies experience something that isn’t as pleasant as chewing on things that aren’t appropriate, and that’s diarrhea that occurs in the late at night. This is not unusual for puppies, however it could be an indication of something serious. Why does your puppy get diarrhea in the evening?
The reasons your puppy might experience diarrhea during the night could be due to recent changes in diet or food intolerances and allergies diseases, illness, medications, stress, and parasites. If your puppy continues to have frequent diarrhea or gets more severe, consult your veterinarian.
Let’s take a closer look at the reasons puppies experience diarrhea during the night, how to go with it, and the time to contact a veterinarian.


Why Does My Puppy Have Diarrhea at Night?

Diarrrhea is a gruelling problem for parents of puppies because it could indicate that your puppy is suffering from something from indigestion that is simple to a serious condition. There are a variety of puppy illnesses that are both serious and minor that cause diarrhea to be an indication. This makes it difficult for owners to know if they should be concerned or not.
What could be the cause of your puppy’s diarrhea at the night? [

Dietary changes

A abrupt change in the food your puppy is eating could cause diarrhea at night. If a company ceases to make the food that you’ve been feeding your puppy or you’re unable to purchase the same high-end brand, changes to your food at a moment’s notice can be a challenge for the stomach of your puppy.
A second thing to remember is that the transition in between adult and puppy foods can affect your dog’s digestive system. Changes to your dog’s diet in a hurry isn’t possible since the stomach and intestines require time to adjust to taking in new nutrients.
Veterinarians recommend a gradual transition to the new food in order to allow your dog to adapt so that it won’t awake at evening with diarrhea. Mix both the food you are feeding your pup with your old food and slowly introduce it into your dog’s diet. Slowly increase the proportion of new diet until it is what you feed your dog the most.


Dogs are emotional creatures, and their bodies react to stress in a variety of ways. If your dog is stressed or stressed, their digestive system could react in a negative way, similar to what human beings do. Similar situations can occur in the event that your dog feels unloved or abandoned. Your dog might experience anxiety, and the process of adapting to this may cause diarrhea due to stress.

Illness or disease

In the case of underlying illnesses, they could cause your dog’s nighttime diarrhea. Certain conditions may be very serious, while some not so much.
It could be something easy like Colitis as well as Inflammatory Bowel Syndrome causing diarrhea in your pet. But it could also be more serious and life-threatening like cancerous tumors within your pet’s intestinal tract.


The nighttime diarrhea of your dog may be an indication of something serious like intestinal parasites. If your dog is drinking water that is contaminated from a source, it might be suffering from parasites such as hookwormsand roundworms as well as the giardia and Coccidia. Young puppies with weak immune systems are more susceptible to infection.
In the majority of cases, nighttime diarrhea is due to something in the diet of your dog, but it can also be an indication of a more serious issue like intestinal parasites.
If your dog is drinking water that is contaminated from a source, they could be suffering from a parasite such as hookworm roundworm, giardia or Coccidia.
The puppies of puppies who are younger and dogs with immune systems that are weak are more susceptible. Parasites can be found in contaminated stool or soil.

Food Intolerance and Allergy

Like humans, dogs are also susceptible to food allergies and intolerance. Whatever breed you choose the dog you have could be allergic to foods with high levels of fat, gluten or dairy. This can result in diarrhea. Dogs are also susceptible to specific proteins, such as lamb or chicken for instance, and could cause diarrhea.
If your puppy is able to access food there are several foods which are harmful for dogs. Take a look at this list of foods that are harmful to dogs to determine whether your puppy is eating one of these food items.


If your dog is starting any medication, like antibiotics or dewormers You can anticipate that they will experience diarrhea for a couple of nights. It is normal and your veterinarian will typically advise you on this before prescribing medications to your pet.

Nighttime Diarrhea Happens

While nighttime diarrhea is common and not usually something to be concerned about, if you think there is an issue that is more serious, bring your pet to the veterinarian to have a thorough examination. If you notice vomiting blood or mucus needs to be taken straight to the vet. Be alert for symptoms such as decrease in appetite, fatigue and fever as well as dehydration.


Is It Normal for Puppies To Have Diarrhea?

Diarrrhea is common in puppies and it’s not uncommon for them to have just a couple of mild episodes. Even a healthy puppy eventually, may suffer from diarrhea. This is due to the fact that puppies don’t have fully functioning immune systems. Therefore, they are more susceptible to changes in their environment and possible causes of infection as compared to adult dogs.
A few mild cases of diarrhea in puppies could disappear quickly by themselves, however others could point to the presence of a bigger issue. Even though it’s common for puppies to suffer from diarrhea, it’s important to monitor your puppy to ensure that it’s not a serious issue.

When Should I Worry About Puppy Diarrhea?

As terrifying as the thought of your dog experiencing diarrhea may be however, it shouldn’t prompt an appointment with the vet. Although healthy pets aren’t always affected, the condition occurs occasionally and is most common during the night. But there are instances that it could be grave.
You need to consider the problem if you notice that the diarrhea isn’t easing or is getting worse. If the episodes get more frequently throughout the night, visiting the vet is recommended.
If you observe that your pet’s appetite is shifting, drinking more than they normally do or appears to be generally anxious and uncomfortable, it could be related to problems that are related to poison, illness or some other cause. If diarrhea occurs in your dog and is associated with any other sign, it’s worth visiting the vet.


Final Thoughts

There is more information on how to treat dogs with digestive problems in our article on How to treat upset Stomachs in dogs. Even though nighttime diarrhea is common and is not something to be concerned about. If you suspect that there is a major issue, bring your puppy to the veterinarian for a physical exam.

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