There are many causes of dysphagia. First of all, esophageal cancer should be excluded. Progressive dysphagia is the most important clinical manifestation of esophageal cancer. If you are >40 years old and have recent signs of weight loss, poor appetite and physical weakness, you must have an electronic gastroscopy. Also inflammatory lesions have symptoms, such as common peri-tonsillitis, throat wall abscess, pharyngitis, esophageal tuberculosis, and reflux esophagitis have this symptom. Then there are benign strictures of the esophagus, such as smooth muscle tumors of the esophagus, esophageal polyps, and esophageal diverticula. In addition to the esophagus itself, compression and pulling outside the esophagus, such as spinal lesions, thyroid enlargement, lung and pleural lesions, and mid-diaphragm lesions, can all present with such compression symptoms. In addition, there are also esophageal dysmotility disorders, such as esophageal spasm and lower esophageal sphincter hypertension, which can present these symptoms. It is recommended to first do an electronic gastroscopy and then a chest CT.