According to the meridian theory of traditional Chinese medicine, ten of the twelve most important meridians and eight strange meridians of the human body start and end at the foot, and many meridians and acupoints of the whole body gather at the foot, which is the place where zang-fu organs, meridians and qi and blood perfusion gather. The pathological changes of zang-fu organs can often be reflected to the foot through meridians, so the foot is called "the second heart of human beings". When we massage the reflex zone of the foot, we will stimulate these acupoints, which, like the principle of blood circulation and reflection, conduct conduction along the meridian route. So it plays a role in dredging meridians. Traditional Chinese medicine believes that "pain is impassable, and impassability is painful", which is the truth, so massaging the foot reflex zone can play a role in dredging meridians.