Scattered longitudinal erosions can be seen above the dentate line of the esophagus, indicating irritation of the esophagus by refluxed material, etc. It may be gastroesophageal reflux disease (GERD), which can be cancerous in the long term. When gastric acid, pepsin, pancreatic enzyme and other reflux material enters into the esophagus, or long-term smoking, drinking alcohol, etc., it can destroy the barrier function of the esophageal mucosa, resulting in esophageal mucosal necrosis, vesicles, ulcers, etc., which are usually manifested above the dentate line of the esophagus, and it may be gastroesophageal reflux disease. Common symptoms include reflux, heartburn, chest pain, retrosternal foreign body sensation, and dysphagia. The site of esophageal erosion can undergo structural changes for a long time and has a tendency to become cancerous, so early treatment is recommended, and medications such as omeprazole, ranitidine, domperidone, etc. can be used as prescribed by the doctor.