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 in the morning; 2. You certainly cannot complete the colonoscopy on the same day because intestinal preparation is required; 3. Please do not forget to bring your recent examination report (which can avoid some unnecessary examinations); 4. 5. Capsule endoscopy is also necessary to make an appointment, some also need to line intestinal preparation; 6. Endoscopic treatment (1. take aspirin and other anticoagulant drugs as far as possible to stop 1 week; 2. female patients need to avoid menstruation) 7. painless endoscopy day to avoid driving, preferably accompanied by a family member.