What causes bile vomit and what color is it does it smell?

Bile vomit is caused by the presence of bile in the stomach, which can occur due to conditions like a blockage in the intestines, severe nausea, or excessive vomiting. It is typically a yellow or greenish color due to the bile's composition. The smell of bile vomit can be quite strong and unpleasant, often described as rancid or bitter. This type of vomit may indicate a more serious underlying condition, so medical attention may be necessary.