Back-Shu Points
Back-Shu points are special acupuncture points located on the Bladder meridian along the back where the Qi of each internal organ is transported and collected. Each of the twelve Zang-Fu organs has a corresponding Back-Shu point, making them essential for diagnosing and treating organ disorders.
Bèi Shū Xué
Back-Shu Points
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Overview
Back-Shu points (背俞穴, Bèi Shū Xué) are a category of twelve special acupuncture points where the Qi of the internal organs is transported and collected at specific locations along the back. The Chinese character "Shu" (俞) means "to transport," indicating that these points transport Qi directly to the corresponding internal organs.
These points are all located on the first lateral line of the Bladder meridian (Foot Taiyang), 1.5 cun lateral to the posterior midline (Du Mai/Governing Vessel). They are arranged vertically along the spine, roughly corresponding to the position of their associated organs. Each of the five Zang organs (Heart, Liver, Spleen, Lung, Kidney) and six Fu organs (plus Pericardium) has a corresponding Back-Shu point, totaling twelve points.
The Back-Shu points have a unique clinical characteristic: they affect the internal organs directly rather than working through the channel pathway like most other points. This makes them particularly effective for treating chronic internal diseases and for diagnostic palpation, as they often become tender or sensitive when their corresponding organ is imbalanced.
Historical Context
The Back-Shu points have ancient origins documented in the foundational texts of Chinese medicine. The Ling Shu (Spiritual Pivot), Chapter 51 "Bei Shu" (背腧), provides the earliest systematic description of these points, recording the locations of the five Zang organ Back-Shu points. The Su Wen (Simple Questions) also discusses these points, with the "Chang Ci Jie Lun" stating "approaching the organs, needle the back—these are the Back-Shu points."
Originally, only ten Back-Shu points were documented in the Nei Jing (Inner Canon). BL-22 Sanjiaoshu (Triple Burner Shu) was first mentioned in the "ABC of Acupuncture" (Jia Yi Jing, 282 CE), and BL-14 Jueyinshu (Pericardium Shu) appeared later in Sun Simiao's "Thousand Golden Ducats Prescriptions" (Qian Jin Yao Fang, 652 CE). The Nan Jing (Classic of Difficulties), Chapter 67, established the principle of pairing Back-Shu points with Front-Mu points, stating that "Yin diseases manifest in Yang" (阴病行阳), meaning internal organ diseases can be detected and treated via the back.
Comparison
Back-Shu Points
背俞穴Located on the back (Yang region), 1.5 cun lateral to spine on Bladder meridian. Best for chronic conditions, deficiency patterns, and tonification. Affect organs directly without going through channels.
Front-Mu Points
募穴Located on the chest/abdomen (Yin region), on various meridians near their organs. Best for acute conditions, excess patterns, and clearing pathogenic factors. Sensitive when organ disease is present.
Clinical Combination
俞募配穴法Combining Back-Shu with Front-Mu points (Shu-Mu pairing) is a classic acupuncture strategy that treats both front and back, Yin and Yang aspects of organ disorders for comprehensive therapeutic effect.
Direct Organ Connection
直达脏腑Unlike other acupuncture points that work by stimulating Qi along a channel to eventually reach an organ, Back-Shu points affect their corresponding organs directly. When needled, Qi goes straight to the relevant organ without requiring the intermediary of its channel pathway. This is why they are especially powerful for treating internal organ disorders.
Chronic Disease Treatment
治疗慢性病Back-Shu points are particularly effective for treating chronic, long-standing conditions ("Yin diseases"). The classical texts suggest that chronic diseases cannot be fully treated without using these points at some stage. Front-Mu points, by contrast, are traditionally more suited for acute conditions ("Yang diseases").
Tonification Focus
扶正补虚While Back-Shu points can address both deficiency and excess patterns, their primary strength lies in tonifying and strengthening the organs. They are excellent for supporting weak organ function and building up depleted Qi, Blood, Yin, or Yang of specific organs.
Diagnostic Palpation
诊断性触诊Back-Shu points serve as diagnostic indicators. When an organ is imbalanced, its corresponding Back-Shu point often becomes tender, sensitive, or may show other abnormal reactions upon palpation. Light tenderness suggests hypofunction (deficiency), while tenderness to deep pressure suggests hyperfunction (excess).
Sense Organ Treatment
治疗五官病Back-Shu points can treat disorders of the sense organs associated with their corresponding Zang organ through the Five Element relationships. For example, BL-18 Ganshu (Liver Shu) treats eye problems because the Liver "opens to the eyes"; BL-23 Shenshu (Kidney Shu) treats ear disorders because the Kidney "opens to the ears."
Practical Application
Shu-Mu Combination: The most important clinical application is pairing Back-Shu points with their corresponding Front-Mu points. This "front-back" combination treats both the Yin and Yang aspects of organ disorders. For example, combine BL-20 Pishu with LR-13 Zhangmen for Spleen disorders, or BL-23 Shenshu with GB-25 Jingmen for Kidney problems.
Yuan-Shu Combination: Combining a Back-Shu point with the Yuan (Source) point of the same organ enhances tonification effects for deficiency conditions. For instance, BL-13 Feishu with LU-9 Taiyuan for Lung Qi deficiency causing chronic cough and breathlessness.
Needling Technique: Due to their location near the spine, Back-Shu points require careful needling. Points above T12 are typically needled obliquely (0.5-1 inch toward the spine), while points below T12 can be needled slightly deeper (1-1.5 inches). The classical texts suggest that moxibustion is often preferred over needling for these points, particularly for tonification.
Five Zang Shu Points Protocol: Needling all five Zang Back-Shu points (BL-13, BL-15, BL-18, BL-20, BL-23) together is a powerful protocol for general constitutional support, chronic fatigue syndrome, and conditions involving multiple organ deficiencies.
Clinical Relevance
Chronic Internal Conditions: Back-Shu points excel in treating long-standing organ disorders such as chronic respiratory conditions (BL-13 Feishu), digestive weakness (BL-20 Pishu, BL-21 Weishu), and kidney deficiency patterns (BL-23 Shenshu). Research has shown effectiveness in treating chronic fatigue syndrome, insomnia, and gastrointestinal disorders.
Emotional and Mental Disorders: Because the organs house the spiritual aspects (Shen) in TCM theory, Back-Shu points are valuable for emotional regulation. BL-15 Xinshu calms the Heart-Shen for anxiety and insomnia; BL-18 Ganshu soothes Liver Qi for emotional frustration and depression.
Modern Applications: Contemporary research has demonstrated neurophysiological correlations between Back-Shu point locations and the segmental distribution of sympathetic nerves innervating the corresponding organs. Stimulating these points has been shown to affect visceral organ function, including bronchial dilation, changes in heart rate, gastric motility, and bladder contractions.
Common Misconceptions
"Back-Shu points should never be needled": While the Ling Shu advises caution about needling the back (preferring moxibustion for the five Zang Shu points), this was primarily a warning against deep needling that could injure internal organs. Modern practitioners safely needle these points using appropriate oblique insertion techniques.
"Back-Shu points are only for deficiency": Although they are most commonly used for tonification and chronic deficiency conditions, Back-Shu points can also be used to clear Heat and subdue rebellious Qi in excess patterns. Their application is broader than often taught.
"Back-Shu and Front-Mu points are interchangeable": While both relate to internal organs, they have distinct clinical applications. Back-Shu points are better for chronic/Yin conditions and tonification, while Front-Mu points are more suited for acute/Yang conditions. They work best when combined rather than substituted for each other.
Organizing Principle
The Back-Shu points are unified by their location on the Bladder meridian's first lateral line (1.5 cun from the spine) and their function as direct access points to the internal organs. Each point is named after its corresponding organ followed by "Shu" (俞), meaning "transporting." They are arranged vertically along the spine in a pattern that roughly mirrors the anatomical position of the organs they affect—Lung at the top, Bladder at the bottom.
Clinically, these points are selected based on which organ system requires treatment. They are most commonly used for chronic internal conditions, especially deficiency patterns. A traditional mnemonic helps practitioners remember their locations: Lung at T3, Pericardium at T4, Heart at T5, Liver at T9, Gallbladder at T10, Spleen at T11, Stomach at T12, Triple Burner at L1, Kidney at L2, Large Intestine at L4, Small Intestine at S1, and Bladder at S2.
The Back-Shu points are often combined with their corresponding Front-Mu points (Shu-Mu combination) for enhanced therapeutic effect, representing one of the most classic point combination strategies in acupuncture.
Points in this Category
Feishu
Lung Shu - Level with T3, 1.5 cun lateral to midline. Tonifies and regulates Lung Qi; treats cough, asthma, and respiratory conditions.
Jueyinshu
Pericardium Shu - Level with T4, 1.5 cun lateral to midline. Opens the chest, regulates Heart Qi; treats chest pain and palpitations.
Xinshu
Heart Shu - Level with T5, 1.5 cun lateral to midline. Nourishes Heart Blood, calms Shen; treats insomnia, anxiety, and heart conditions.
Ganshu
Liver Shu - Level with T9, 1.5 cun lateral to midline. Spreads Liver Qi, nourishes Liver Blood; treats eye disorders and emotional issues.
Danshu
Gallbladder Shu - Level with T10, 1.5 cun lateral to midline. Clears Gallbladder Heat, resolves dampness; treats bitter taste and hypochondriac pain.
Pishu
Spleen Shu - Level with T11, 1.5 cun lateral to midline. Tonifies Spleen Qi, transforms dampness; treats digestive disorders and fatigue.
Weishu
Stomach Shu - Level with T12, 1.5 cun lateral to midline. Harmonizes Stomach Qi; treats nausea, vomiting, and epigastric pain.
Sanjiaoshu
Triple Burner Shu - Level with L1, 1.5 cun lateral to midline. Regulates water passages, transforms fluids; treats edema and urinary disorders.
Shenshu
Kidney Shu - Level with L2, 1.5 cun lateral to midline. Tonifies Kidney Qi, Yin, and Yang; treats lower back pain, tinnitus, and reproductive issues.
Dachangshu
Large Intestine Shu - Level with L4, 1.5 cun lateral to midline. Regulates intestines; treats constipation, diarrhea, and lower back pain.
Xiaochangshu
Small Intestine Shu - Level with S1, 1.5 cun lateral to midline. Separates clear from turbid; treats lower abdominal pain and urinary problems.
Pangguangshu
Bladder Shu - Level with S2, 1.5 cun lateral to midline. Regulates Bladder function; treats urinary retention, incontinence, and sacral pain.
Classical Sources
Ling Shu (Spiritual Pivot)
Chapter 51 - Bei Shu (Back-Shu)黄帝问于岐伯曰:愿闻五脏之腧,出于背者。
The Yellow Emperor asked Qibo: I wish to learn about the Shu points of the five Zang organs that emerge on the back.
Ling Shu (Spiritual Pivot)
Chapter 51 - Bei Shu按其处,应在中而痛解,乃其腧也。
Press upon the location; when there is response at the center and the pain is relieved, that is the Shu point.
Su Wen (Simple Questions)
Chang Ci Jie Lun (Long Needling Treatise)迫脏刺背,背俞也。
To approach the organs, needle the back—these are the Back-Shu points.
Nan Jing (Classic of Difficulties)
Chapter 67阴病行阳,俞在阳。
Yin diseases manifest in Yang; the Shu points are in the Yang [region of the back].
Modern References
Chinese Acupuncture and Moxibustion
Comprehensive textbook covering Back-Shu point theory and clinical applications
The Foundations of Chinese Medicine
Detailed discussion of Back-Shu points including clinical use for chronic diseases and their relationship to Front-Mu points
Anatomical structures and needling method of the back-shu points BL18, BL20, and BL22
Systematic review analyzing safe needling depths and angles for Back-Shu points, published in Medicine journal
Neurophysiologic Basis of Back-Shu and Huatuo-Jiaji Points
Research exploring the autonomic nervous system correlations with Back-Shu point locations and their effects on visceral organs