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Pancreatitis

Dog Vomiting Yellow Bile or Foam: Causes, When to Worry, and Treatment

You find your dog hunched over, heaving, and producing yellow liquid or foam—sometimes frothy, sometimes watery, often with a foamy consistency. This is bilious vomiting: your dog is throwing up bile, the yellow-green digestive fluid produced by the liver and stored in the gallbladder. While alarming, yellow bile vomit is usually NOT a life-threatening emergency if it happens occasionally. However, persistent or severe vomiting signals underlying digestive issues requiring veterinary attention.