What Does It Mean When Vomit Is Bright Yellow?

By Staff WriterLast Updated Mar 26, 2020 10:00:22 PM ET

When vomit is bright yellow or greenish yellow in color, it means that the vomit contains bile, a substance that is secreted by the liver, according to Parents. Yellow vomit in babies can be indicative of a birth defect that causes an obstruction in the gastrointestinal tract. It can also indicate a twisted bowel or a blockage of meconium.