The desire to vomit after drinking too much water may be related to drinking too much water, the temperature of drinking water, and chronic gastritis. First of all, if the patient drinks water at a temperature that is too low and too cold, it will stimulate the gastric mucosa, thus causing the symptoms of wanting to vomit. Secondly, drinking too much water, drinking a large amount of water in a short period of time, exceeds the tolerance of the gastric mucosa, the pressure inside the stomach becomes too much, there will be nausea, want to vomit, stomach distension, and also the symptoms of acid reflux, stomach distension, and want to vomit. Finally patients who usually have chronic gastritis, the protective layer of the mucosa of the stomach is damaged to a certain extent, when drinking too much water when a large amount of water dilutes the gastric juices, causing excessive expansion of the stomach, which increases the burden on the stomach and also stimulates the secretion of gastric acid, which further stimulates the gastric mucosa leading to a decrease in the function of the stomach, there will be the desire to vomit. It is recommended to eat regularly and not to overeat.