DOGS · Symptom guide
Dog vomiting: what real veterinary case reports show
Vomiting in dogs ranges from "ate something gross outside, will be fine by tomorrow" to "this is the first sign of pancreatitis, Addison's, or a gastric foreign body". The distinguishing factors vets care about are: how long it's been going on, whether the dog can hold down water, whether there's blood involved, and whether other systems are affected (energy, appetite, abdominal pain).
Across published case series, the conditions that surface most often in dogs with chronic vomiting (>1 week) are: inflammatory bowel disease, pancreatitis (acute and chronic), gastric foreign body, dietary indiscretion / food-responsive enteropathy, Addison's disease (often missed), helicobacter gastritis, and — in older large-breed dogs — gastric carcinoma.
The cases below are real reports from veterinary clinics. They show the actual diagnostic path each team took and the treatment that worked.
When to see a vet now
- Repeated vomiting + retching with nothing coming up (could be GDV / bloat — emergency in large breeds).
- Blood in the vomit, or coffee-ground-looking material.
- A bloated, tense abdomen, or pain when you touch the belly.
- Lethargy or collapse alongside the vomiting.
- Vomiting that's gone on more than 48 hours, or any vomiting with refusal to drink.
Real cases from the veterinary literature
A teaser of peer-reviewed reports our semantic search surfaces for this complaint. Click into any case for the full abstract — or run a personalised search with your pet's exact details.
- Diagnostic exercise: chronic vomiting in a dog.
Veterinary pathology · 2010 · United States
A one-and-a-half-year-old neutered male mixed-breed dog was brought to the vet because he had been vomiting for a long time and also had severe diarrhea. The veterinarian performed surgery to look inside his abdomen, where they found and removed bone chips from his stomach and took a sample of the stomach lining for testing. The tests showed that he had a severe infection cause
- Canine gastritis
The Veterinary clinics of North America. Small animal practice · 2003 · United States
Gastritis, which is inflammation of the stomach, is often mentioned when dogs have stopped eating and are vomiting, but it isn't frequently studied in detail. While there are many possible causes for acute or chronic gastritis, there are surprisingly few articles that look closely at real cases in dogs over the past 25 years. Most of the research tends to focus on how dogs are
- Acute pancreatitis attributed to dietary indiscretion in a female mixed breed canine.
The Canadian veterinary journal = La revue veterinaire canadienne · 2010 · Canada
A female mixed-breed dog was brought to the vet because she had been uncomfortable in her belly and vomiting for a day after eating something she shouldn't have. The vet's examination and tests confirmed that she had acute pancreatitis, which is inflammation of the pancreas often caused by eating rich or inappropriate foods. She received specific treatment and supportive care,
- Small animal review
Companion Animal · 2023 · United States
Pancreatitis is a serious and common illness in dogs that affects the pancreas, which helps with digestion and regulating blood sugar. Dogs with chronic pancreatitis may have repeated episodes of stomach pain and stop eating, while those with acute pancreatitis often experience vomiting. In the most severe cases, this condition can lead to shock and even death. Because the panc
- Gallbladder aspirate from a dog.
Veterinary clinical pathology · 2006 · United States
A 7-year-old male Labrador Retriever, who had a history of pancreatitis and inflammatory bowel disease, was brought in because he was vomiting and had stopped eating. Blood tests showed problems with his liver function, and an ultrasound revealed issues with his gallbladder, leading to a diagnosis of emphysematous cholecystitis, which is an infection of the gallbladder. The dog
Frequently asked questions
- When is dog vomiting an emergency?
- Suspected bloat (retching, distended belly, restlessness — especially in large deep-chested breeds) is a true emergency, go now. Blood, lethargy, collapse, or known toxin/foreign-body exposure also warrant the ER. Otherwise: more than 24-48 hours of vomiting, refusal to keep water down, or vomiting plus diarrhea need same-day vet attention.
- What's the most useful first test?
- Most workups start with CBC, chemistry, and a specific canine pancreatic lipase (cPL or SNAP cPL). Addison's disease — a notorious mimic of "chronic GI issues" — is screened with electrolytes and a baseline cortisol or ACTH-stim. Abdominal radiographs or ultrasound rule in foreign body and assess organs.
- Could it be food allergy?
- Yes — food-responsive enteropathy (sometimes called "chronic enteropathy") is the most common diagnosis in dogs with chronic intermittent vomiting and otherwise normal bloodwork. A strict 8-week hydrolyzed-protein or novel-protein diet trial is the test. Many cases below show this exact protocol working.