Which point is the ying-spring point on the fire element in the lung meridian?

The ying-spring point is characterized by its role in the acupuncture system as a point that is particularly effective for treating conditions related to the elemental associations of the meridian. In the case of the lung meridian, which is associated with the fire element, the specific point that serves as the ying-spring point is LU-10.

LU-10, also known as Yuji (Fish Belly), is located on the palmar aspect of the hand, approximately at the midpoint of the first metacarpal bone. This point is particularly beneficial for conditions that involve heat in the lungs, as well as for issues related to the throat, making it significant for treating symptoms like cough, sore throat, and other respiratory conditions.

While other points on the lung meridian serve different functions—such as LU-9, which is the shu-stream and source point, and LU-7, known for its connections with the ren channel—the specific role of LU-10 as the ying-spring point aligns with its elemental association and therapeutic application for fire-related lung conditions. Thus, LU-10 stands out as the correct choice in this context.