If you don’t want to do gastroscopy, you can do the following tests to diagnose gastric diseases: 1) Routine tests, such as routine blood tests, routine stool tests, and four quantitative tests of gastric function, etc., which are of assessed value for the diagnosis of common gastrointestinal diseases, such as acute gastroenteritis and bacillary dysentery, etc. 2) C14 breath test, which can quickly and accurately diagnose the presence of Helicobacter pylori infection and take timely treatment measures. 3) Barium meal X-ray, in which the patient will take or be injected with a contrast medium, followed by an X-ray machine. C14 breath test, this kind of test can quickly and accurately diagnose whether the examinee has Helicobacter pylori infection, and take corresponding treatment measures in time. 3, barium meal X-ray examination, the examinee will take or muscle injection of contrast medium, and then combined with the X-ray machine on the stomach or other systemic tissues for photographic examination, to observe the morphology of the local organs and tissues changes. This test is commonly used for the diagnostic evaluation of gastric space-occupying lesions, such as gastric polyps, gastric sinus carcinoma, gastric neurofibroma, etc. 4. Magnetic Resonance Imaging (MRI) examination, immunological examination, ultrasonography, etc., can also be used for the diagnosis and evaluation of gastric diseases. However, gastroscopy can more fully and intuitively observe the lesions, which is more valuable for disease recovery.