Background: The pathophysiologic mechanism of functional dyspepsia (FD) is unclarified yet.Gastrointestinal motor dysfunction may be one of the main factors in the pathogenesis of FD.

• 摘要背景：功能性消化不良(FD)的病理生理机制尚未完全阐明，消化道运动功能异常可能是主要发病机制之一。