Barium meal includes barium meal for upper gastrointestinal tract, barium meal for colonography, etc. The cost is generally not too high, about 200-300 yuan. Barium meal is suitable for the auxiliary diagnosis of some esophageal tumors, which can observe the length and scope of the lesion, but it can’t be characterized or biopsied, and can’t replace the routine gastroscopy and colonoscopy. If some elderly patients are unable to tolerate gastroscopy, they can choose barium meal test, combined with other imaging tests such as chest CT and tumor indexes, which can make clinical diagnosis of esophageal cancer. However, to diagnose the nature of esophageal cancer, it is necessary to take pathology by esophagoscopy or gastroscopy to determine the nature of esophageal cancer. Generally speaking, barium meal is still applied more in clinic, but it has some limitations, such as the diagnosis of malignant tumors, which can not be completely determined by barium meal.