Difficulty in swallowing does not necessarily mean esophageal cancer. One of the clinical manifestations of esophageal cancer is difficulty in swallowing, which is not necessarily caused by esophageal cancer. Esophageal cancer is one of the more powerful malignant tumors in China or in the world, ranking second after stomach cancer. Most patients in the early stage of esophageal cancer will not have symptoms related to dysphagia, which may only be mild symptoms such as pain behind the sternum or heartburn. After the middle stage of esophageal cancer, patients will have progressive dysphagia, which occurs when the cancer cells have invaded the esophagus and reached at least half of the esophageal wall. The mortality rate of esophageal cancer is relatively high worldwide, with about 200,000 people dying of esophageal cancer every year, and it is one of the most common human tumors. The clinical manifestation of patients with mid-stage esophageal cancer is progressive dysphagia. The severity of dysphagia is related to the pathological type of esophageal cancer, among which medullary cancer is more common than other types. In terms of the management of progressive dysphagia in patients with esophageal cancer, treatment of the primary disease is usually the main focus, and if the local mucosa is good, systematic swallowing therapy can also be tried.