Why does my Siberian Husky have diarrhoea?

Diarrhoea is a common health problem that affects dogs of all ages and breeds. It can be caused by a variety of factors, including infections, dietary indiscretion, and underlying health conditions. In this article, we’ll explore the scientific causes of diarrhoea in dogs.

Infectious Agents

One of the most common causes of diarrhoea in dogs is infection with infectious agents such as bacteria, viruses, and parasites. Some common bacterial causes of diarrhoea include Salmonella, Campylobacter, and E. coli. Viral infections, such as parvovirus, can also cause diarrhoea. Parasites, such as giardia and roundworms, can also lead to diarrhoea in dogs. These infectious agents can be contracted through exposure to contaminated food or water, or through contact with other infected animals.

Dietary Indiscretion

Dietary indiscretion refers to the ingestion of non-food items or a change in diet that can lead to digestive upset. Dogs are known for their propensity to eat things they shouldn’t, such as garbage or spoiled food. This can lead to diarrhoea and other gastrointestinal symptoms. In addition, sudden changes in diet, such as switching to a new type of food or feeding table scraps, can also cause diarrhoea.

Inflammatory Bowel Disease (IBD)

Inflammatory bowel disease (IBD) is a chronic condition that causes inflammation in the lining of the digestive tract. This can lead to diarrhoea, vomiting, and weight loss. The exact cause of IBD is unknown, but it is thought to be related to an abnormal immune response to the gut microbiome or dietary antigens.


Pancreatitis is a condition in which the pancreas becomes inflamed and swollen. This can lead to digestive symptoms such as diarrhoea, vomiting, and abdominal pain. Pancreatitis can be caused by a variety of factors, including obesity, high-fat diets, and certain medications.

Stress and Anxiety

Stress and anxiety can also cause diarrhoea in dogs. This can be especially true for dogs who are prone to stress or who have anxiety disorders. Stress can cause changes in the gut microbiome and alter digestive function, leading to diarrhoea and other gastrointestinal symptoms.


In some cases, diarrhoea in dogs can be a sign of an underlying cancer. Gastrointestinal tumours can cause diarrhoea, weight loss, and other digestive symptoms. It is important to have any persistent or severe cases of diarrhoea evaluated by a veterinarian to rule out cancer as a potential cause.


In conclusion, there are many potential causes of diarrhoea in dogs, ranging from dietary indiscretion to underlying health conditions. If your dog experiences diarrhoea, it is important to monitor their symptoms and seek veterinary care if the diarrhoea persists or is accompanied by other symptoms. Your veterinarian can help determine the underlying cause of the diarrhoea and develop an appropriate treatment plan.