DEAR MAYO CLINIC: What is the difference between bile reflux and acid reflux? Bile reflux involves fluid from the small intestine flowing into the stomach and esophagus. Acid reflux is backflow of ...
Yellow or greenish vomit is a sign you're throwing up bile, a digestive fluid produced by the liver. This could indicate a serious medical concern, like a hiatal hernia or intestinal blockage. It can ...