Both gastroscopy and painless gastroscopy are tests used to examine diseases of the esophagus, stomach, and duodenum. Both are performed by sending cold light from the mouth through the esophagus and stomach lumen to the descending duodenum through a fiber optic tube of only one centimeter in diameter, illuminating the esophagus, stomach lumen and duodenum, and a miniature camera carried at the front of the gastroscope, simultaneously and acutely recording the images of the lumen, with sharp, clear images of the lumen dynamically presented on a high-definition video display screen of the process. The specific one to be used should be analyzed specifically. Ordinary gastroscopy will be uncomfortable when inserting the gastroscope through the throat, one will feel nausea and dry heaving, and if someone will feel pain in the throat. Patients will also be more nervous, which increases the difficulty of the examination and the time of the examination. Painless gastroscopy means that before the examination, the doctor injects anesthesia into the patient intravenously, so that the patient quickly goes to sleep, and thus the whole body relaxes, which facilitates the advancement of the gastric tube, and the observation and acquisition of graphics, thus reducing the examination time, and the patient does not feel pain. The cost of general gastroscopy is about a few hundred dollars, and the cost of painless gastroscopy is about 1000 or more, the specific price depends on the region and the level of the hospital, the price of each hospital is different, it is best to go to the hospital in person to consult, if the economic conditions are better, patients who are afraid of general gastroscopy, it is recommended to do painless gastroscopy will be better.