Which BL point is located 3 cun lateral to the midline at T12 and level with Weishu BL‑21?

Which BL point is located 3 cun lateral to the midline at T12 and level with Weishu BL‑21?

• A. Bl 52
• B. Bl 50
• C. Bl 51
• D. Bl 53

Answer: (B)

On the back, the Bladder channel uses fixed vertebral levels with precise distances from the midline. Weishu (BL-21) sits at T12, about 1.5 cun lateral to the midline. The point that lies at the same vertebral level but 3 cun lateral is BL-50. This spatial rule—1.5 cun for the Shu point and 3 cun for the paired lateral point at the same level—lets you locate BL-50 easily. So, the point located 3 cun lateral to the midline at T12, level with Weishu, is BL-50.

On the back, the Bladder channel uses fixed vertebral levels with precise distances from the midline. Weishu (BL-21) sits at T12, about 1.5 cun lateral to the midline. The point that lies at the same vertebral level but 3 cun lateral is BL-50. This spatial rule—1.5 cun for the Shu point and 3 cun for the paired lateral point at the same level—lets you locate BL-50 easily. So, the point located 3 cun lateral to the midline at T12, level with Weishu, is BL-50.