Chest X-ray cannot be used for checking esophageal cancer. Chest X-ray is used to check the human body’s bones, heart and lungs, and most of all, it is used to observe the human body’s lungs. The esophagus can be examined by esophageal X-ray, that is, esophageal X-ray barium meal imaging, which can be used to assist in diagnosing the presence of esophageal cancer. In early stage of esophageal cancer, X-ray barium meal imaging can indicate thickening of the esophageal mucosal wall or small filling, defects and small niches, etc. However, for the diagnosis of esophageal cancer, X-ray barium meal imaging can be used to diagnose the presence of esophageal cancer. However, the diagnosis of esophageal cancer must rely on endoscopy and pathological biopsy, which are the most accurate examination methods. In general, chest X-ray mainly looks at the heart and lungs, but cannot be used to diagnose diseases of the esophagus, especially esophageal cancer.