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The small bowel capsule endoscopy is a new endoscopic technology. Through a pill-sized capsule with cameras on one end and a small data recorder, medical staff can view the inner wall of the small bowel Examination usually lasted for eight hours and it will then be naturally passed out during bowel opening. This examination is accurate, simple, safe, low-invasive and also require no sedatives. Subjects’ discomfort and inconvenience can be effectively minimized.