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    Bladder Channel · Inner Line

    Back-Shu Points 背俞穴

    The twelve Back-Shu (Bèi Shū) points sit on the inner Bladder line, 1.5 cùn lateral to the spine. Each one is the direct back-projection of a single Zàng-Fǔ organ — and together they form the most efficient diagnostic and treatment corridor in classical acupuncture. Every point below deep-links into the Medi-Chi point database.

    How to read this table

    • Spinal level — the vertebra the point sits alongside (measured from the lower border of the spinous process).
    • Front-Mù pair — the corresponding gathering point on the front of the body. Needling the pair together is a classical Shū-Mù treatment.
    • Clinical note — how the point tends to behave in practice, and the pairings Medi-Chi's diagnosis engine reaches for first.
    BL-13Fèi Shū 肺俞
    Back-Shu of Lung 肺 · Metal
    Spinal level
    T3, 1.5 cùn lateral
    Front-Mù pair
    LU-1 Zhōng Fǔ

    Indications. Cough, asthma, chronic Lung Qi deficiency, spontaneous sweating, tuberculosis.

    In clinic. Tenderness here almost always accompanies chronic respiratory patterns and Wèi Qi deficiency.

    BL-14Jué Yīn Shū 厥陰俞
    Back-Shu of Pericardium 心包 · Fire (ministerial)
    Spinal level
    T4, 1.5 cùn lateral
    Front-Mù pair
    REN-17 Shān Zhōng

    Indications. Chest oppression, palpitations, anxiety, cardiac neurosis, insufficient lactation.

    In clinic. First-line for emotional cardiac patterns; pairs well with PC-6.

    BL-15Xīn Shū 心俞
    Back-Shu of Heart 心 · Fire (imperial)
    Spinal level
    T5, 1.5 cùn lateral
    Front-Mù pair
    REN-14 Jù Què

    Indications. Insomnia, palpitations, poor memory, mania, night sweats, epilepsy.

    In clinic. Classical Shén-calming point. Moxa cautiously — nourishes Heart Yin/Blood.

    BL-18Gān Shū 肝俞
    Back-Shu of Liver 肝 · Wood
    Spinal level
    T9, 1.5 cùn lateral
    Front-Mù pair
    LR-14 Qī Mén

    Indications. Eye disorders, irritability, flank pain, jaundice, hypochondriac pain, dizziness.

    In clinic. Palpated tightness reflects Liver Qi stagnation; use with LR-3 for a classic four-gates variant.

    BL-19Dǎn Shū 膽俞
    Back-Shu of Gallbladder 膽 · Wood
    Spinal level
    T10, 1.5 cùn lateral
    Front-Mù pair
    GB-24 Rì Yuè

    Indications. Bitter taste, jaundice, timidity, damp-heat in Gallbladder, indecision.

    In clinic. Pair with LR/GB channel points for Shào Yáng syndromes and biliary complaints.

    BL-20Pí Shū 脾俞
    Back-Shu of Spleen 脾 · Earth
    Spinal level
    T11, 1.5 cùn lateral
    Front-Mù pair
    LR-13 Zhāng Mén

    Indications. Digestive weakness, Damp, chronic diarrhoea, oedema, fatigue, poor appetite, bruising.

    In clinic. Foundational tonification point — moxa is often more effective than needling.

    BL-21Wèi Shū 胃俞
    Back-Shu of Stomach 胃 · Earth
    Spinal level
    T12, 1.5 cùn lateral
    Front-Mù pair
    REN-12 Zhōng Wǎn

    Indications. Epigastric pain, nausea, vomiting, borborygmus, bloating.

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

    BL-22Sān Jiāo Shū 三焦俞
    Back-Shu of San Jiao 三焦 · Fire
    Spinal level
    L1, 1.5 cùn lateral
    Front-Mù pair
    REN-5 Shí Mén

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

    In clinic. Regulates the Water passages across all three burners.

    BL-23Shèn Shū 腎俞
    Back-Shu of Kidney 腎 · Water
    Spinal level
    L2, 1.5 cùn lateral
    Front-Mù pair
    GB-25 Jīng Mén

    Indications. Low back pain, tinnitus, impotence, enuresis, chronic fatigue, infertility, chronic asthma.

    In clinic. The most-used Back-Shu — pair with KI-3 for Kidney Yin/Yang tonification and Míng Mén warmth.

    BL-25Dà Cháng Shū 大腸俞
    Back-Shu of Large Intestine 大腸 · Metal
    Spinal level
    L4, 1.5 cùn lateral
    Front-Mù pair
    ST-25 Tiān Shū

    Indications. Constipation, diarrhoea, low back pain, sciatica, IBS.

    In clinic. Local point for lumbar patterns as well as systemic LI treatment.

    BL-27Xiǎo Cháng Shū 小腸俞
    Back-Shu of Small Intestine 小腸 · Fire
    Spinal level
    S1, 1.5 cùn lateral
    Front-Mù pair
    REN-4 Guān Yuán

    Indications. Lower abdominal pain, dysuria, sacral pain, seminal emission.

    In clinic. Located on the sacrum — needled shallowly, moxa welcome.

    BL-28Páng Guāng Shū 膀胱俞
    Back-Shu of Bladder 膀胱 · Water
    Spinal level
    S2, 1.5 cùn lateral
    Front-Mù pair
    REN-3 Zhōng Jí

    Indications. Urinary retention, enuresis, cystitis, low back stiffness, sacral pain.

    In clinic. First-line for lower Jiāo Water patterns; almost always paired with its Front-Mù REN-3.

    Frequently asked

    What are the Back-Shu points?

    The Back-Shu (Bèi Shū Xué 背俞穴) are twelve points on the inner Bladder line, 1.5 cùn lateral to the spine, where the Qi of each Zàng-Fǔ organ 'infuses into the back'. They regulate their partnered organ directly, and palpating them is one of the fastest diagnostic surveys in TCM.

    How are Back-Shu points used diagnostically?

    Tender, cool, hollow or knotted Back-Shu points typically indicate a chronic, deficient or Yin pattern in the associated organ. Compare bilateral tone, temperature and tenderness during palpation — the finding often precedes overt symptoms.

    What is a Shū-Mù treatment?

    Pairing a Back-Shu (Yang aspect, on the back) with the same organ's Front-Mù point (Yin aspect, on the chest/abdomen) creates a front-back Yin-Yang balance targeting a single organ system — e.g. BL-23 Shèn Shū with GB-25 Jīng Mén for Kidney patterns, or BL-20 Pí Shū with LR-13 Zhāng Mén for Spleen patterns.

    Are the outer-line 'spirit' points also Back-Shu?

    No. The outer Bladder line (3 cùn lateral to the spine) holds a parallel set named for the ethereal aspect of each organ — Pò Hù (BL-42) for the Corporeal Soul of the Lung, Hún Mén (BL-47) for the Ethereal Soul of the Liver, and so on. They are usually reserved for psycho-emotional and constitutional work rather than physical organ regulation.

    Keep exploring the Bladder channel

    The Bladder Meridian guide covers the full pathway, the outer 'spirit' line, and how the Water element pairs with the Kidneys in clinical patterns.

    Read the Bladder Meridian deep-dive →

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