Causes of vomiting yellow bitter water after drinking alcohol include alcohol stimulation, bile reflux gastritis, cholecystitis and so on. You can choose to drink more warm water, take medication and so on. 1. Alcohol stimulation: part of the population after drinking alcohol due to ethanol stimulation of the gastric mucosa leading to vomit yellow water bitter water. You can drink a moderate amount of water to speed up the body’s metabolism of alcohol at the same time, to prevent excessive vomiting caused by dehydration. 2. Bile reflux gastritis: patients suffering from this disease are prone to stimulate the gastric mucosa after drinking alcohol, resulting in esophagus and stomach muscles contracted violently, discharging bitter yellow water. At this time, patients can take magnesium aluminum carbonate, aluminum sulfate, rabeprazole and other acidic gastric drugs to reduce symptoms. 3. cholecystitis: one of the triggers of this disease is overeating, when the patient vomits yellow water, bitter water, and accompanied by the right side of the abdomen or umbilical pain, it is recommended to immediately go to the hospital, abdominal ultrasound to clarify the cause. You can choose medication such as ampicillin, metronidazole prophylactic infection treatment, atropine, scopolamine and other drugs antispasmodic pain relief. Drinking alcohol vomiting yellow bitter water, there may be other reasons, it is recommended that the patient to the hospital in a timely manner, improve the relevant examination, clear cause, follow the doctor’s instructions for treatment.