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What may cause yellow diarrhea and yellow bile in vomiting?
1 doctor weighed in

Dr. Colin Kerr
Family Medicine
In brief: Yellow GI fluids
Both the yellow diarrhea and the yellow bile color in vomitus are due to the same chemical, bile, which is produced by the liver. Normally you never see it in the stomach because normal eating keeps it moving down the GI tract.
But when you vomit, and if you're stomach has no food, then all there is to see is the bile. When you're not eating regularly, the same bile will make your stool yellow.

In brief: Yellow GI fluids
Both the yellow diarrhea and the yellow bile color in vomitus are due to the same chemical, bile, which is produced by the liver. Normally you never see it in the stomach because normal eating keeps it moving down the GI tract.
But when you vomit, and if you're stomach has no food, then all there is to see is the bile. When you're not eating regularly, the same bile will make your stool yellow.
Dr. Colin Kerr
Dr. Colin Kerr
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