People's internal organs live in body cavities and cannot be observed directly. Each zang-fu organ has a meridian, which can be connected with some parts of the human body surface and reflect the pathological changes of the zang-fu organs to the body surface. This channel is the meridian
When the viscera diseases are reflected on the human body surface, they are often distributed in the direction of the corresponding meridians, showing a point shape. After long-term observation, these special spots are very sensitive to some diseases and have a strong correspondence. Therefore, Chinese medicine calls these sensitive points on the meridians acupoints. Zang-fu diseases are often reflected in the acupoints of its meridians. Pressing these points can give you a special feeling or pleasure. Therefore, acupoints are the parts of the human body that reflect visceral diseases, and can be treated through acupoints-meridians-viscera to achieve the purpose of treating diseases.