Directly superior to Zan Zhu BL-2, 0.5 cun within the anterior hairline, level with Shenting DU-24. Which point is described?

• A. BL 3
• B. BL 4
• C. BL 2
• D. BL 1

Answer: (C)

The described location is the medial end of the eyebrow area where the Bladder channel meets the forehead landmarks, specifically 0.5 cun inside the anterior hairline and at the same level as Shenting (DU-24). This combination of being near the inner brow, just inside the hairline, and aligned with the DU-24 level matches the classic position of Zan Zhu (BL-2). In standard charts, BL-2 is located at the medial end of the eyebrow in the depression at the superior border of the orbit, oriented toward the forethought region, and its relation to the hairline and the Shenting level is what sets it apart from neighboring points. Other nearby points sit at different distances from the eyebrow’s medial end or at different vertical levels, so they don’t fit this exact description. Therefore, the point described is Zan Zhu, also known as BL-2.