Gastroesophageal reflux is a disease caused by the reflux of gastric and duodenal contents into the esophagus, which can be diagnosed by gastroscopy under the guidance of a specialized physician. Gastroesophageal reflux (GERD) is a disease caused by the reflux of gastric and duodenal contents into the esophagus. GERD is mainly characterized by symptoms such as acid reflux and heartburn, and may also be associated with extra-esophageal symptoms such as coughing, sputum, asthma, and so on. The presence of the above symptoms requires further consultation with the Gastroenterology Department for electronic gastroscopy, etc. If mucosal congestion, edema, and erosion are observed in the lower esophagus, gastroesophageal reflux disease (GERD) can be diagnosed. Tests such as esophageal reflux monitoring and esophageal manometry can also be performed. Gastroesophageal reflux is recommended to consult the gastroenterology department in time, and choose the appropriate examination under the guidance of specialized physicians for clear diagnosis and treatment.