Pain is a complex process of electrical signal transmission. Electroacupuncture may adjust the bioelectric state of the tissues in painful sites through electrical characteristic structural units (acupoints), thereby exerting analgesic effect. The treatment of diseases with electroacupuncture results from the interaction between the external electric field and the electrical properties of acupoint tissues. Therefore, the state of biological tissues and the parameters of electroacupuncture all affect the therapeutic effect.
疼痛是复杂的电信号传递过程，电针可以通过电特性结构单元（即穴位）对疼痛部位组织的生物电能状态进行调整，进而发挥镇痛效应。电针治疗疾病是外加电场与穴位组织电特性相互作用的结果，因此，生物组织的状态以及电针参数均会影响电针治疗的效果。.
Keywords: analgesia; bioelectricity; electric characteristics of acupoints; electroacupuncture.