Digestive Health
Dog Vomiting vs. Regurgitation: What's the Difference?
In veterinary medicine they are distinct conditions. Being able to describe which one you saw helps your vet reach the right diagnosis faster.
Educational content — not veterinary advice
Information on this page is general guidance only and does not replace diagnosis or treatment by a licensed veterinarian. Always work with your vet before making condition-related dietary changes.
Vomiting (active)
- Origin: stomach or upper intestine.
- Process: nausea, drooling, retching; forceful abdominal heaving.
- Appearance: partially digested food mixed with yellow bile.
- Common causes: gastroenteritis, toxins, pancreatitis, dietary indiscretion.
Regurgitation (passive)
- Origin: oesophagus.
- Process: effortless — food comes up without warning, no heaving.
- Appearance: undigested food, often shaped like a tube.
- Common causes: megaoesophagus, eating too fast, structural issues.
Why it matters
Repeated regurgitation — especially in young dogs — warrants imaging to rule out congenital conditions like a persistent right aortic arch (PRAA). Morning vomiting on an empty stomach with yellow bile is often "bilious vomiting syndrome" and responds to smaller, more frequent meals.
What to do
For occasional vomiting: withhold food for a few hours, offer water, then reintroduce a bland diet with a probiotic. For any regurgitation pattern in a young dog, get X-rays.
Keep reading
The complete guide to dog digestive health →