Usually mild
Yellow vomit is usually bile, a digestive fluid from the gallbladder. It often happens when your dog's stomach is empty, typically early in the morning or late at night (sometimes called bilious vomiting syndrome).
See a vet now if you notice:
- Retching with nothing coming up and a swollen belly (bloat)
- Blood or coffee-ground material
- Vomiting with diarrhea, lethargy or belly pain
- Not keeping water down, or not eating for 24 hours
- Possible toxin, string or swallowed object
- A puppy, senior or dog with health problems
Possible causes
- Empty stomach (long gap between meals)
- Eating grass or something irritating
- Food intolerance or a sudden diet change
- Pancreatitis, liver disease or inflammatory bowel disease
- A blockage, if vomiting is repeated
What to do
- If your dog vomits yellow bile once and otherwise seems normal, feed a small meal and watch.
- If it happens mostly in the morning, try splitting food into more frequent meals and giving a small snack before bed.
- Offer small amounts of water.