Olympus Electronic Gastroscopy is accurate, Olympus Painless Electronic Gastroscope, is currently the medical digestive endoscopy field ranked top, advanced function of the instrument, the examination results are clear, accurate, is the gold standard diagnostic method of digestive tract diseases. Olympus painless electronic gastroscope is the use of electronic signal imaging technology, compared with the traditional gastroscope fiber-optic imaging technology, not only can reduce the pain of patients during gastroscopy, but also able to real-time conduction of the examination image to the external monitor screen, the formation of the image is not only clear, but also can be amplified effect, greatly improving the chances of observing the microscopic lesions. Olympus painless electronic gastroscopy results of whether the accuracy of the examination is also closely related to the patient’s gastrointestinal preparation before the examination and the examination of the doctor’s proficiency, the patient should go to the local large-scale tertiary hospitals, follow the doctor’s instructions to do a good job of gastrointestinal preparation.