Drinking and vomiting yellow water refers to yellow bile in the vomit, which is manifested as yellow water, drinking and vomiting yellow water occurs mainly due to the following two reasons: First, alcohol is a chemical stimulant, the patient in the drink may cause some of the muscles in the back flaccid, movement disorders, which leads to the duodenum bile will reflux to the human stomach. Secondly, alcohol as a chemical stimulant, can make the human brain center of the vomiting center stimulated, and may trigger the patient’s stomach, esophagus or duodenum inflammation, part of the inflammation may be through the nerve stimulation to the vomiting center, so that the phenomenon of vomiting yellow water after drinking. So the patient is due to alcohol stimulation or due to the inflammation in the digestive tract stimulates the vomiting center, so that the patient appears to vomit, the yellow bile in the stomach to vomit out of the body, and thus the phenomenon of drinking and vomiting yellow water.