What causes acid reflux when drinking cold water?

Generally, drinking cold water causing stomach acid is mainly due to the irritation of the stomach by the cold temperature. The specific details are as follows:

After a patient drinks cold water, discomfort in the stomach or symptoms such as excess stomach acid often occur because the cold water irritates the gastric mucosa, leading to impaired contraction function of the mucosa and excessive secretion of gastric acid, thus resulting in gastrointestinal discomfort. Additionally, drinking cold water may easily cause abdominal chilling, leading to symptoms such as diarrhea and increased stomach acid. If the above symptoms occur, patients should visit a正规 hospital and, under medical guidance, take medications such as omeprazole capsules, colloidal bismuth pectin capsules, or mosapride tablets for treatment.

It is recommended that patients seek timely medical attention if symptoms are severe. In daily life, maintain a light diet, eat more fresh fruits and vegetables—such as bananas, Chinese cabbage, and lettuce—and avoid spicy, stimulating, or cold foods such as chili peppers, Sichuan pepper, and raw fish, to prevent worsening of the condition. Furthermore, ensure adequate rest, avoid staying up late, quit smoking and alcohol, and engage in appropriate physical exercises such as running, rope skipping, and swimming to enhance immune function.