If no discomfort occurs after ordinary gastroscopy, you can drink milk; if the patient is undergoing painless gastroscopy, when the throat is under anesthesia after the examination, you cannot drink milk, and you can drink milk after the anesthesia reaction has disappeared. Gastroscopy can be divided into ordinary gastroscopy and painless gastroscopy. If the patient has an ordinary gastroscopy, usually there is no anesthesia before the gastroscopy, and the patient does not have any treatment during the gastroscopy, he can drink a small amount of milk after the gastroscopy. If the patient is doing painless gastroscopy, anesthetics will be used before the gastroscopy, some patients will also be in anesthesia after the painless gastroscopy in the throat, at this time you can’t drink milk, so as not to cause choking and coughing, generally to be local anesthesia reaction subsides before you can drink a small amount of milk or drink water. Whether patients can drink milk after gastroscopy needs to be judged on a case-by-case basis, and it is recommended that patients strictly follow the doctor’s instructions to eat or drink.