Which point is 1 cun below the prominence of the medial malleolus, in the groove formed by two ligamentous bundles?

• A. KD 4
• B. KD 6
• C. BL 66
• D. KD 8

Answer: (B)

Locating this point relies on using the medial ankle landmarks and the groove behind the medial malleolus. The description points to the depression just 1 cun below the prominence of the medial malleolus, in the groove created by the two ligamentous bundles that form a channel for tendons there. This precise spot is Kidney point on the ankle.

That’s why this option is correct: it matches exactly where the point sits on the Kidney channel—in that medial-groove area under the malleolus. The other points are in different positions relative to the ankle and don’t sit in that same groove, so they don’t fit the descriptor.