Drinking water for stomach pain may have stomach ulcer, gastritis, stomach tumor and other diseases. 1. Gastric ulcer, gastritis: people suffering from gastritis and gastric ulcer may irritate the gastric mucosa and cause stomach pain by drinking cold water or too hot water. Patients are often accompanied by heartburn, nausea, vomiting, bloating, irregular bowel movements and other symptoms. 2. Gastric tumor: such as gastric cancer, patients may show symptoms of stomach pain, and drinking water may aggravate the symptoms of stomach pain. It is recommended that patients who have stomach pain when drinking water should go to gastroenterology department of hospital for timely consultation, complete relevant examinations, such as stool routine, gastroscopy, pathological biopsy, etc., to make a clear diagnosis, and then choose appropriate treatments and medicines under the guidance of doctors, and should not use medicines by themselves to avoid adverse consequences.