Which acupuncture point is 3 cun proximal to the superior border of the patella, in a tender depression on the bulge of the vastus medialis muscle?

• A. Baichongwo
• B. Heding
• C. Xiyan
• D. Dannangxue

Answer: (A)

Locating this point relies on using a clear landmark and a precise measurement: a point on the thigh’s medial side, three cun above the upper edge of the patella, found in a tender hollow on the bulge of the vastus medialis. That description matches Baichongwo, which sits in that exact area on the medial thigh and is used for knee and leg issues by addressing local qi and blood flow in the knee region. The other options correspond to different knee locations and do not match the described site on the vastus medialis, so they aren’t correct for this description.