Expectations refer to advance delineating desired values of something in the future. However

there are both positive and a negative expectations. Researches have shown that expectations affect the acupuncture clinical effectiveness. Reasonable and positive expectations have a good placebo effect

while the negative expectations show an obvious anti-placebo effect. This article aims at analyzing the correlated researches on how expectation affecting the acupuncture clinical effectiveness

so that researchers could gain some inspirations for further acupuncture mechanism studies and clinical application.