Gastroscopy two years ago esophagus does not mean that there is no lesions, esophageal disease is a slow and gradual process, while the detection of lesions is limited by the examiner’s technology, so it is recommended to re-examine if there are symptoms. Gastroscopy results are time-sensitive, generally applicable to 3-6 months, for some initial manifestations of small cancers such as adenocarcinoma of the esophagus, it is more difficult to detect during the examination, so two years ago the examination did not mean that the patient is not a problem now. Gastroscopy technology is more complicated, and the examination result has a lot to do with the examiner’s technique. If the material was not taken to the corresponding area for pathological examination two years ago, there is a possibility of cancerous changes now. It is recommended that patients with symptoms such as gastrointestinal bleeding or prolonged stomach pain, bloating, foreign body sensation, difficulty in eating, etc., should further go to the hospital for another examination of gastroscopy.