<Li> Dark red vomit with liver - like clots suggests profuse bleeding in the stomach, such as from a perforated ulcer </Li> <Li> Coffee - ground - like vomit suggests less severe bleeding in the stomach, because the gastric acid has had time to change the composition of the blood </Li> <Li> Yellow vomit suggests bile, indicating that the pyloric valve is open and bile is flowing into the stomach from the duodenum (this is more common in older people) </Li> <P> Vomiting may be due to a large number of causes, and protracted vomiting has a long differential diagnosis . </P>

Where does bile come from when you vomit