Many hospitals in China have carried out painless gastroscopy, which is actually the addition of general anesthesia to the original gastroscopy, specifically, the patient is given intravenous general anesthesia first, and then the gastroscopy is done, and we often encounter patients asking if painless gastroscopy is painful? Is there any risk in painless gastroscopy? Are there any after-effects? Generally speaking, the risk of painless gastroscopy is not very big, and an experienced anesthesiologist plus an experienced endoscopist will not pose any major risk. If a patient has no contraindications to anesthesia, painless gastroscopy can be performed smoothly. Many patients who have undergone painless gastroscopy have a common feeling: it seems that they have slept and feel nothing, and some patients even chase the doctor and ask whether the gastroscopy has been done or not.