Esophagitis has been symptomatic has the potential to be serious. Esophagitis refers to inflammatory changes such as congestion and edema that occur after irritation or injury to the mucosa of the esophagus, which can lead to erosion or even ulcer formation in severe cases. Depending on the causative factors, it can be categorized into reflux esophagitis, radiation esophagitis, eosinophilic esophagitis, infectious esophagitis, drug esophagitis, corrosive esophagitis and other types. Esophagitis can manifest as acid reflux, heartburn, chest pain, painful swallowing, dysphagia, etc. It can also cause extra-esophageal manifestations such as pharyngolaryngitis, chronic cough, idiopathic pulmonary fibrosis and hoarseness. When the stimulation of the esophagus such as gastric acid, bile, alcohol, strong acid and alkali and other chemical stimuli; too hot food, drink, esophageal foreign body (such as fish splinter), long-term placement of nasogastric tube and other physical stimuli as well as infection, radiotherapy, immunization and other stimuli increase, it can cause further damage to the mucosa of the esophagus, resulting in the aggravation of acid reflux, nausea, dysphagia and other symptoms. Patients with esophagitis are advised to seek prompt medical attention for a clear diagnosis and targeted treatment under the guidance of a doctor.