Disease location identification as a major guide to acupoint selection

Selecting acupoints according to channel pathway is the major point selection principle in acupuncture treatment for which there is a consensus. However, defining the disease location remains the premise of acupoint selection based on channel pathway. What is the substance of disease location identification in clinical acupuncture? Besides indicating acupoint selection according to channel pathway, what guidance can it provide for acupuncture treatment? This is the main topic discussed in this article.