在背部，第4胸椎棘突下缘，后正中线旁开3寸。

注：本穴与内侧的厥阴俞(BL14)均位于第4胸椎棘突下缘水平。

In the upper back region, at the same level as the inferior border of the spinous process of the fourth thoracic vertebra (T4), 3 B-cun lateral to the posterior median line.

Note: BL43 and BL14 are located at the same level as the inferior border of the spinous process of the fourth thoracic vertebra (T4).

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