1. If you want to complete the gastroscopy, abdominal ultrasound, upper gastrointestinal barium meal and other examinations on the same day, please fast and abstain from water on the same morning; 2. 6. If you need endoscopic treatment for gastric polyps or intestinal polyps, you can send the information to the available specialist in advance, and maybe the specialist can book your hospitalization in advance to ease the process of seeing a doctor (endoscopy — specialist outpatient —- hospital registration —– home for bed —— admission); 7. 8. endoscopic treatment (1. stop taking aspirin and other anticoagulant drugs for 2 weeks; 2. female patients need to avoid menstruation) 9. painless endoscopy day to avoid driving, preferably accompanied by a family member; for the time being, I can add more later