Generally speaking, stomach discomfort after drinking water may be caused by improper drinking water, chronic gastritis, stomach cramps and so on. 1. Drinking water improperly: such as drinking too much water at one time, drinking water too fast, the water temperature is too low, etc., may lead to a large amount of gas along with the water into the stomach, ice water to stimulate the stomach, inducing a feeling of bloating and pain in the stomach, usually after a period of time can be recovered on their own. 2. Chronic gastritis: the patient’s stomach wall mucous membrane protective barrier has been damaged, after suddenly drinking a lot of water, it will lead to a sudden increase in the stomach body, which will also induce stomach pain, discomfort symptoms. 3. Stomach cramps: strong contraction of the stomach muscles will cause stomach cramps, manifested as sudden severe pain, accompanied by nausea, vomiting and other symptoms. Stomach cramps can be caused by overeating, drinking too much water, or eating irregularly. It is recommended that patients who have stomach discomfort when drinking water go to the hospital in time to avoid delaying their condition.