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    All Back-Shu points
    Back-Shu of the San Jiao · Fire · Bladder inner line

    BL-22Sān Jiāo Shū 三焦俞

    Back-Shu of the San Jiao 三焦. Front-Mù pair: REN-5 Shí Mén.

    Spinal level
    L1
    1.5 cùn lateral to the spine
    Element
    Fire
    Front-Mù pair
    REN-5 Shí Mén

    Location

    1.5 cùn lateral to the lower border of the spinous process of L1.

    Actions

    • Regulates the Sān Jiāo and water passages
    • Resolves oedema and promotes urination
    • Strengthens the lumbar region

    Indications

    Oedema, dysuria, ascites, borborygmus, low back pain.

    Regulates the Water passages across all three burners.

    Needling technique

    Perpendicular 0.8–1.2 cùn (below the ribs — safer window than the thoracic Shu points).

    Moxibustion

    Useful for cold-type oedema and Lower Jiāo cold with dysuria.

    Cautions

    Kidney lies deep — do not exceed 1.2 cùn in thin patients.

    Classical pairings

    • SJ-4 Yáng Chí — Yuán-source of the Sān Jiāo
    • REN-5 Shí Mén — Front-Mù of the Sān Jiāo
    • SP-9 Yīn Líng Quán — resolves Damp and promotes urination

    Open in the point database

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    Educational reference for licensed practitioners and students. Not medical advice — always correlate with a full TCM assessment and Western clinical judgement.