Getting up in the morning to drink water regurgitation is often seen in the drinking water is too cold, gastroesophageal reflux disease, acute gastroenteritis and so on. 1. Drinking water is too cold: if you wake up in the morning and drink too cold water, the gastrointestinal tract will be stimulated, which will easily cause nausea, vomiting symptoms, and may even lead to diarrhea. 2. Gastroesophageal reflux disease: mainly due to the stomach at night when sleeping in a horizontal state, the contents of the reflux to the esophagus, causing local irritation, easily cause discomfort symptoms, get up in the morning and drink water may aggravate the discomfort symptoms, resulting in regurgitation. 3. Acute gastroenteritis: it may be induced by unclean eating, or it may be caused by drinking unhygienic water, and the patient will have vomiting, diarrhea, abdominal pain and other symptoms. When you get up in the morning and drink water and regurgitate, there may be other reasons, so pay attention to observe the body’s condition. If accompanied by other uncomfortable symptoms and the symptoms continue to be unrelieved, you need to consult a doctor in a timely manner to identify the cause and then targeted treatment.