Objective To investigate the effect of emulation acupuncture pretreatment on the behavior of rats with visceral traction pain and the mechanism of its relieving action on rat visceral traction pain.Methods Forty male SD rats were randomly allocated to four groups(sham operation, VTP, emulation acupuncture and electroacupuncture), 10 rats each.A VTP model was made shortly after 30 min treatment.The pain score was counted in each group of rats.Rat ileal nerve SP expression-positive substance, AChE activity an...