The main causes of water vomiting are related to long-term indigestion, reflux esophagitis, and drinking too much water too fast. 1. Long-term dyspepsia: when the patient’s gastrointestinal function is not good, spicy and stimulating food, which increases the burden on the gastrointestinal tract, can cause water vomiting. 2. Reflux esophagitis: when stomach acid reflux into the esophagus, the esophageal mucosa caused by a certain infringement, some stomach acid will even reflux to the throat, the salivary glands of the oral cavity to a certain degree of stimulation, which leads to salivary secretion, the emergence of the phenomenon of spitting water. 3. Drinking too much water too fast: drinking too much water in a short period of time, more than the gastric mucosa’s ability to withstand, the pressure in the stomach is too great, there can be spitting water phenomenon. When the phenomenon of spitting out water repeatedly, you should consult a doctor in time.