How to check the stomach

1. Gastroenteroscopy. Gastroscopy is the most common and accurate examination method for esophageal, gastric and duodenal diseases. Colonoscopy is mainly used to observe all colorectal lesions from anus to ileocecal valve.2. Push enteroscopy. Push enteroscopy has the function of suction and gas injection, so it can observe the lesions more clearly. After finding the lesions, biopsy and endoscopic treatment can be taken. 3. Helicobacter pylori detection. Helicobacter pylori detection plays an important role in the diagnosis and treatment of gastric precancerous diseases and lesions, peptic ulcer, gastrointestinal mucosa associated lymphoma and other diseases. 4. Gastrointestinal CT. CT examination is usually performed after gastrointestinal radiography finds lesions. 5. Abdominal plain film, fluoroscopy or radiography.