The causes of eating and swallowing include mechanical dysphagia such as pharyngitis and esophageal foreign body and dynamic dysphagia such as esophageal spasm. 1. Mechanical dysphagia: Mechanical dysphagia can be produced by oversized food or esophageal stricture. Causes of esophageal stricture include pharyngitis, tonsillitis, reflux esophagitis, foreign body in the esophagus, and abscess in the posterior pharyngeal wall. 2. Dynamic dysphagia: Dynamic dysphagia is caused by nerve abnormality or muscle dysfunction, including esophageal spasm, pancreatic achalasia and so on. 3. Psychological disorders: Certain psychological disorders can also lead to dysphagia, such as depression. There are many causes of dysphagia, if the above symptoms are not relieved, or accompanied by other symptoms, it is recommended to consult a doctor in a timely manner, with the help of a doctor to clarify the cause of the disease, and to carry out targeted treatment or therapy.