Do gastroscope can see esophagus

Gastroscopy can directly observe esophageal, stomach, duodenal lesions, gastroscopy can find and diagnose esophageal diseases, such as reflux esophagitis, Barrat esophagus, esophageal cancer, etc. Therefore, if there is nausea, vomiting, acid reflux, belching, abdominal distension, upper abdominal pain and other manifestations, it is recommended to go to a public hospital for gastroscopy, pay attention to fasting 6 to 8 hours before gastroscopy, and do not eat within 2 hours after gastroscopy.