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    Back-Shu of the Stomach · Earth · Bladder inner line

    BL-21Wèi Shū 胃俞

    Back-Shu of the Stomach 胃. Front-Mù pair: REN-12 Zhōng Wǎn.

    Spinal level
    T12
    1.5 cùn lateral to the spine
    Element
    Earth
    Front-Mù pair
    REN-12 Zhōng Wǎn

    Location

    1.5 cùn lateral to the lower border of the spinous process of T12.

    Actions

    • Harmonises the Stomach and Middle Jiāo
    • Descends rebellious Stomach Qi
    • Resolves Damp and Food Stagnation

    Indications

    Epigastric pain, nausea, vomiting, borborygmus, bloating.

    Combine with BL-20 for the full Middle Jiāo Shū pair.

    Needling technique

    Oblique toward the spine, 0.5–0.8 cùn.

    Moxibustion

    Excellent for cold in the Stomach, chronic nausea and epigastric coldness. Avoid in Stomach Heat.

    Cautions

    Pneumothorax risk if angled laterally.

    Classical pairings

    • ST-36 Zú Sān Lǐ — He-sea, harmonises Stomach
    • REN-12 Zhōng Wǎn — Front-Mù of the Stomach and Huì-meeting of the Fǔ
    • BL-20 Pí Shū — combined Middle Jiāo Shū pair

    Open in the point database

    View live location diagrams, additional research citations and full needling metadata for BL-21.

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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.