Drinking water and vomiting can be caused by physiological factors, but also indigestion, acute gastroenteritis, intestinal obstruction and other diseases. 1. Physiological factors: women in early pregnancy can have pregnancy vomiting, resulting in drinking water all vomit, preferably in the 5-6 weeks of pregnancy, usually in 3-4 months after the majority of self-relief. 2. Acute gastroenteritis: Bacterial, viral, parasitic infection or other non-infectious factors can cause acute gastroenteritis, nausea, vomiting, diarrhea and other symptoms. 3. Intestinal obstruction: Intestinal obstruction is caused when the intestinal contents cannot pass through the intestinal tract smoothly, which may cause abdominal distension, nausea, vomiting, and stopping defecation and gas evacuation. Excluding physiological factors, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to determine the cause of the disease and targeted treatment, do not take medication, so as not to delay the condition.