It is possible to examine, in addition to gastroscopy, barium X-ray meal, as well as ultrasound. The decision to do a gastroscopy is made by the doctor based on the condition and the patient’s acceptance. There are different ways to examine the stomach and different characteristics of the lesions. Gastroscopy is the most valuable test for examining stomach lesions, and it can also treat them accordingly. Therefore, in case of stomach discomfort, as long as there is no gastric perforation, you can get a comprehensive understanding of the situation in the stomach through the method of gastroscopy, and when you do gastroscopy, once you find foreign bodies such as polyps or tumors in the stomach, you can also take local tissue for biopsy, which can further confirm the diagnosis and avoid the existence of malignant tumors. Therefore, gastroscopy is more clinically diagnostic than other examinations and is more accurate. Barium meal examination can observe the relevant lesions by observing the distribution of barium and in the stomach. For larger ulcers and tumors, the relevant manifestations can be found, but for smaller lesions, the more flat lesions are difficult to be found. Ultrasound examination of the stomach is used in some specific cases to fill and perfuse the stomach by drinking liquid and to observe the structure of the stomach wall by ultrasound, and judgments can be made about lesions in the submucosa of the stomach. What test should be applied to examine the stomach needs to be judged by the doctor according to the specific condition.