Acupuncture (zhen jiu 針灸) is a therapeutic method within traditional Chinese medicine that involves inserting fine needles into specific points on the body to regulate the flow of Qi through the meridians. The term zhen jiu actually encompasses two practices: zhen (針, needling) and jiu (灸, moxibustion — burning dried mugwort near or on acupuncture points to warm and tonify). Both are used to restore the body’s functional balance according to the principles identified through pattern diagnosis.
Acupuncture points
Acupuncture points (xue wei 穴位, literally “cave positions”) are specific locations along the meridians where Qi is accessible from the body surface. Over 360 classical points are distributed along the twelve primary meridians and the eight extraordinary meridians, with additional “extra points” (qi xue 奇穴) outside the standard meridian pathways.
Each point has specific functions and indications. Some examples illustrate the logic:
Hegu (LI 4, 合谷) — on the Large Intestine meridian, in the web between thumb and index finger. One of the most commonly used points. Functions: expels Wind, clears Heat, releases the exterior, stops pain (especially in the face, head, and teeth). The Large Intestine meridian pathway travels from the hand, up the arm, across the shoulder, up the neck to the face — explaining why a point on the hand treats facial and dental pain. The meridian pathway is the diagnostic connection.
Zusanli (ST 36, 足三里) — on the Stomach meridian, below the knee. One of the most important tonification points. Functions: tonifies Qi and Blood, harmonizes the Stomach and Spleen, strengthens the body’s overall resistance. It is the primary point for any Spleen/Stomach deficiency pattern and is traditionally used as a general health-maintenance point.
Taichong (LV 3, 太衝) — on the Liver meridian, on the dorsum of the foot. The primary point for regulating Liver Qi. Functions: spreads Liver Qi, resolves stagnation, calms Liver Yang, nourishes Liver Blood. Used for any pattern involving Liver Qi stagnation — the emotional-digestive-menstrual pattern described in the Five Phases section.
Shenmen (HT 7, 神門) — on the Heart meridian, at the wrist crease. Literally “Spirit Gate.” Functions: calms the Shen, nourishes Heart Blood, settles anxiety and insomnia. The point’s name reflects its function: it is the gate through which the practitioner accesses and calms the spirit.
The logic of point selection follows from pattern diagnosis. The practitioner does not select points based on the biomedical disease but based on the TCM pattern. For insomnia caused by Heart Blood deficiency, the treatment uses points that nourish Heart Blood and calm Shen (Shenmen HT 7, Sanyinjiao SP 6). For insomnia caused by Liver Fire disturbing the Heart, the treatment uses points that clear Liver Fire and calm the Heart (Xingjian LV 2, Shenmen HT 7). Same symptom, different pattern, different point prescription.
Needling techniques
The effect of acupuncture depends not only on which points are selected but on how the needles are manipulated. Several techniques alter the therapeutic effect:
Tonification (bu fa 補法): gentle insertion, slow manipulation, needle retained for longer periods. Used for deficiency patterns — the goal is to supplement what is lacking. The needle is typically inserted with the direction of meridian flow.
Sedation (xie fa 瀉法): firm insertion, strong stimulation, shorter retention. Used for excess patterns — the goal is to drain what is excessive. The needle is typically inserted against the direction of meridian flow.
De Qi (得氣, “obtaining Qi”): the sensation that indicates the needle has engaged the Qi at the point — typically described by the patient as a dull ache, heaviness, distension, or tingling, and felt by the practitioner as a tug or resistance on the needle. De Qi is generally considered essential for therapeutic effect, though some styles (particularly Japanese acupuncture) use gentler techniques that do not seek strong De Qi.
Even method (ping bu ping xie 平補平瀉): neutral stimulation, neither tonifying nor sedating. Used when the pattern is mixed or when the goal is to regulate rather than supplement or drain.
Moxibustion
Moxibustion (jiu 灸) involves burning dried Artemisia vulgaris (mugwort, ai ye 艾葉) near or on acupuncture points. The purpose is to warm the meridians and expel Cold, tonify Yang and Qi, and promote the smooth flow of Qi and Blood. Moxibustion is used primarily for Cold and Deficiency patterns — conditions where the body needs warming and supplementation rather than clearing and draining.
Methods include:
- Direct moxibustion: a small cone of moxa is placed directly on the point and burned (traditionally to completion; in modern practice, typically removed before burning the skin)
- Indirect moxibustion: a moxa cone is burned on top of an intervening substance — ginger (for Cold-Damp), salt (for emergency Yang rescue at the navel), or garlic (for toxins and certain skin conditions)
- Moxa stick: a cigar-shaped roll of compressed moxa is held near the point, warming it without contact. The most common method in modern practice.
- Needle-top moxibustion: a ball of moxa is placed on the handle of an inserted needle, warming the point through the needle. Combines needling and moxibustion effects.
Other manual therapies
Several related therapies use the same meridian and point framework:
Tui Na (推拿): therapeutic massage using pressing, rolling, kneading, and stretching techniques along meridians and at acupuncture points. Tui Na is particularly effective for musculoskeletal conditions, Qi stagnation patterns, and pediatric conditions (where needling is less practical).
Cupping (ba guan 拔罐): glass or bamboo cups are applied to the skin with suction (traditionally created by briefly heating the air inside the cup). Cupping draws stagnant Blood and Qi to the surface, promoting circulation and releasing muscle tension. Used primarily for pain, Cold-Damp accumulation, and Qi/Blood stagnation.
Gua Sha (刮痧): repeated stroking of the skin with a smooth-edged instrument (traditionally horn or jade) until petechiae (sha 痧) appear. The petechiae represent stagnant Blood being brought to the surface, where it can be reabsorbed and recycled. Used for acute febrile conditions, pain, and stagnation patterns.
Acupuncture and biomedical research
Biomedical research has investigated acupuncture extensively, with mixed results that reflect the fundamental difficulty of testing a treatment that is individualized (different patterns get different point prescriptions), technique-dependent (tonification vs. sedation), and relationship-embedded (the practitioner’s assessment and presence are part of the treatment).
Consistent findings include:
- Acupuncture produces measurable physiological effects: endorphin release, modulation of autonomic nervous system activity, local anti-inflammatory effects, and changes in functional MRI patterns (Kaptchuk, 2000)
- For chronic pain conditions, acupuncture performs better than no treatment and often better than sham acupuncture, though the margin over sham is smaller than TCM practitioners expect
- The “specific effects” question — whether needle placement at TCM-designated points matters more than placement at random points — remains contested, with some studies showing point-specificity and others showing equivalent effects from non-classical point locations
The difficulty is that biomedical research methodology (randomized controlled trials, standardized interventions, sham controls) may not be well-suited to testing a treatment whose effectiveness depends on individualized pattern diagnosis and practitioner skill. Testing “acupuncture for low back pain” with a standardized point prescription removes the diagnostic reasoning that TCM considers essential to the treatment’s effectiveness. This does not mean acupuncture is untestable — it means the testing methodology needs to match the treatment’s logic, which is an ongoing challenge in integrative medicine research.
Related
- Meridians — the channel system that acupuncture points are distributed along
- Pattern Diagnosis — the diagnostic method that determines point selection
- Zang-Fu — the organ-function systems that acupuncture regulates
- Qi — the circulating force that acupuncture aims to regulate
- Herbal Medicine — the other major TCM therapeutic modality
- Somatics — body-based therapeutic practices from a Western framework
- Traditional Chinese Medicine — the medical tradition that uses acupuncture