功能性消化不良(functional dyspepsia,FD)是临床常见的症候群,发病率高,占消化道疾病患者的20%~40%〔1〕,欧美流行病学调查发现,人群消化不良发病率为21%~40%,其中40%~70%为FD〔2〕。不仅影响患者的生活质量,而且构成相当高的医疗费用,患者常主诉上腹不适、隐痛、早饱、上腹胀 Functional dyspepsia (FD) is a common clinical syndrome, the incidence is high, accounting for 20% to 40% of patients with digestive diseases [1], epidemiological survey in Europe and the United States found that the incidence of indigestion in the population was 21% ~ 40%, of which 40% ~ 70% FD [2]. Not only affect the quality of life of patients, but also constitute a very high medical costs, patients often complain of abdominal discomfort, pain, early satiety, abdominal distension