Effectiveness of Acupuncture for Cyclical Mastalgia （CM）

We will select Ashi points (the most obvious local pain over the breast), Tanzhong(CV17), bilateral Wuyi (ST15), Rugen (ST18), Tianzong(SI11), Geshu (BL17), Ganshu(BL18), Hegu(LI4), Sanyinjiao (SP6) and Taichong (LR3)in this trial.After insertion, all needles will be manually manipulated (equal manipulations of twirling, lifting, and thrusting)to achieve De qi sensation.

The SA group will use a special needle in which the tip is blunt and the pedestal is opaque. There is an adhesive pad below the base to ensure that the whole pedestal can adhere to the points. Participants will receive superficial touch at bilateral sham GV8(Jinsuo), sham GV7(Zhongshu), sham GV6(Jizhong), sham GV5(Xuanshu), sham GV4(Mingmen), sham BL37(Yinmen), and sham BL57(Chengshan), the needles will touch the skin and not be inserted into the skin, then lift and twist each point evenly for 3 times, make the subject feel the similar sensation of deqi.