

If your dog has been suffering from vomiting, diarrhoea, or a combination of both, your poor furry friend just might have a case of gastroenteritis. Gastroenteritis is a relatively common condition in dogs where there is inflammation of the stomach and intestines that results in vomiting, diarrhoea or both. Though common, gastroenteritis can be frustrating, scary and — depending on its cause and its effects on the individual dog — challenging to manage.
Types of Gastroenteritis in Dogs
Gastroenteritis is further separated into two types — acute and chronic. Acute gastroenteritis comes on suddenly. Chronic gastroenteritis occurs over the course of weeks, months or even years. Acute gastroenteritis usually goes away by itself; in other cases, it will progressively worsen until veterinary treatment is provided.
Causes of Gastroenteritis in Dogs
Gastroenteritis in dogs can have many potential causes. Here's a list of possible causes:
- Ingestion of spoiled or raw foods, or of non-food items
- Viruses (parvovirus, distemper, etc.)
- Intestinal parasites
- Changes in intestinal flora/microbiome
- A food allergy or sensitivity
- Gastrointestinal (GI) ulcers
- GI cancers
- Foreign bodies
- Intestinal obstruction
- Genetic disease or predisposition
Unfortunately, it's usually difficult to pinpoint the exact cause of the condition. However, this doesn't mean that your dog can't be cured. In fact, most veterinary treatment is successful.
Signs of Gastroenteritis in Dogs
Gastroenteritis in dogs typically starts with soft stool that becomes progressively wetter. Later on, you may notice mucus in the stool, your dog straining to produce a bowel movement and/or defecation in the house. You can also see diarrhoea with vomiting. Less often, it can manifest as vomiting alone, though if the condition is confined to the stomach itself, veterinarians may refer to it as gastritis.
Here are other common signs:
- Explosive and/or frequent bowel movements
- Tarry faeces
- Large volumes of watery stool
- Blood in faeces
- Lethargy
- Restlessness
- Abdominal pain
- Nausea (drooling, swallowing frequently)
- Vomiting