Objective To investigate the effect of intra-rACC( rostral anterior cingulate cortex,rACC) administration of Ifenprodil on aversion related to bone-cancer pain. Methods Totally 30 male Wistar rats without place preference were randomly divided into three groups: control group( n = 10),bone-cancer pain group( n = 10) and Ifenprodil group( n =10). A total of 3 μL MADB-106 cells( 4.8 ×109/mL) were inoculated into the right tibia bone marrow cavity in rats of the bone-cancer pain group and Ifenprodil group; rat...