Gastroscopy can examine Barrett’s esophagus for heterogeneous hyperplasia. Gastroscopy is the most commonly used and accurate examination tool for checking esophageal and gastric diseases, and various lesions of the esophageal mucosa can be observed under gastroscopy. Under normal conditions, the esophageal mucosa is a complex squamous epithelium, which is uniformly pink in color under gastroscopy. When Barrett’s esophagus heterotrophic hyperplasia occurs, it is manifested as a reddish-orange mucosa in the proximal part of the dentate line at the gastroesophageal junction, where the pyogenic columnar epithelium replaces the squamous epithelium. The diagnosis of Barrett’s esophagus heterotelangiosis can be confirmed by gastroscopic examination of the esophageal mucosa with the aid of gastroscopy and pathologic examination. Endoscopic treatment of Barrett’s esophagus heterozygosis can also be performed, such as mucosal stripping surgery. If you have Barrett’s esophagus, you should go to the hospital as soon as possible to get a clear diagnosis, and the doctor will make a diagnosis and treatment plan according to the specific condition, so as to avoid delaying the condition.