4.6 Palpation (Qie Zhen): Comprehensive 28 Pulses, Channels, and Abdominal Zones

4.6 Palpation (Qie Zhen): Comprehensive 28 Pulses, Channels, and Abdominal Zones

Palpation (Qie Zhen) is the fourth diagnostic pillar, encompassing tactile assessment of the radial artery pulse (Mai Zhen), primary and divergent channel trajectories (Jing Luo Qie Zhen), and abdominal diagnostic zones (Fu Zhen / Japanese Hara). The first chapter (Difficulty 1) of the Nan Jing established the radial artery at the wrist—the Cun Kou—as the master diagnostic locus where all twelve channels converge through the Lung meridian (Fei Chao Bai Mai).

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1. Radial Pulse Anatomy, Positions, and Depths

The Three Positions (San Bu)

The practitioner palpates the radial artery at the styloid process of the radius using the index, middle, and ring fingers:

1. Guan (Bar / Middle): Located directly adjacent to the prominent medial crest of the radial styloid process; corresponds to the Middle Burner.
2. Cun (Inch / Distal): Located directly distal to Guan (between Guan and the transverse wrist crease); corresponds to the Upper Burner.
3. Chi (Cubit / Proximal): Located directly proximal to Guan (toward the elbow); corresponds to the Lower Burner.

                      [ RADIAL ARTERY PULSE POSITIONS ]

      Distal (Hand)                                            Proximal (Elbow)
      =================[ CUN ]========[ GUAN ]========[ CHI ]=================
                         |               |               |
                    Upper Burner    Middle Burner   Lower Burner
                    (Distal/Inch)   (Radial Crest)  (Proximal/Cubit)

Bilateral Organ Placement (Standard NCBAHM Framework)

Clinical Memory Anchor: The Left Wrist corresponds to the Blood aspect and Yin channels (Heart and Liver), while the Right Wrist corresponds to the Qi aspect and Yang channels (Lung and Spleen). Both Chi positions assess the Kidneys: Left Chi is Kidney Yin / Water; Right Chi is Kidney Yang / Ming Men Fire.

The Three Depths (San Hou)

1. Superficial Depth (Fu Hou): Feather-light finger pressure touching the skin. Assesses Qi, Defensive Qi (Wei Qi), the exterior body, and Yang organs.
2. Middle Depth (Zhong Hou): Moderate pressure depressing the vessel wall. Assesses Blood, Nutritive Qi (Ying Qi), the Stomach, and the Spleen.
3. Deep Depth (Chen Hou): Heavy pressure pressing close to the radius bone and deep tendons. Assesses Yin, the solid Zang organs, the Kidneys, and the interior body.

Attributes of a Normal Pulse (Ping Mai)

A balanced, healthy pulse reflects three physiological parameters:

• Stomach Qi (Wei Qi): Calm, smooth, steady, unhurried rhythm (4 to 5 beats per breath, approximately 60–80 bpm), neither too floating nor too deep.
• Spirit (Shen): Softness combined with distinct strength; clear, rounded beat definition.
• Root (Gen): Clearly palpable at the deep Chi position with solid tone, indicating intact Kidney Yuan Qi and Ming Men Fire.

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2. The 28 Classical Pulses Categorized by Physical Dimension

Category A: Floating Pulses (Felt easily at superficial touch; weakens with deep pressure)

1. Floating Pulse (Fu Mai):
   • Tactile Feel: Distinct at the superficial level like wood floating on water; softens under heavy pressure.
   • Significance: Exterior Syndrome (Wind-Cold or Wind-Heat). If floating and empty without force: chronic interior deficiency.
2. Empty / Deficient Pulse (Xu Mai):
   • Tactile Feel: Large, wide, soft, completely lacking resistance; feels empty upon moderate pressure.
   • Significance: Qi and Blood Deficiency.
3. Leather / Tympanic Pulse (Ge Mai):
   • Tactile Feel: Hard, tight, and stretched at the superficial level like a drum skin, but completely empty and hollow underneath.
   • Significance: Severe depletion of Kidney Jing or Blood, profuse blood loss, miscarriage, severe menorrhagia.
4. Hollow / Scallion-Stalk Pulse (Kou Mai):
   • Tactile Feel: Floating, large, and soft, but completely hollow in the center like the stalk of a green onion.
   • Significance: Acute Massive Hemorrhage or severe fluid loss.
5. Scattered Pulse (San Mai):
   • Tactile Feel: Floating, diffuse, chaotic, broken into irregular beats without margins or root; disappears upon pressure.
   • Significance: Critical dissipation of Yuan Qi; failure of Heart and Kidney Qi.
6. Soft / Soggy Pulse (Ru Mai):
   • Tactile Feel: Floating, extremely fine, soft, palpable only with feather-light touch; disappears with slight pressure.
   • Significance: Dampness accompanied by Qi Deficiency.

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Category B: Deep Pulses (Felt only with heavy pressure near the bone)

1. Deep Pulse (Chen Mai):
   • Tactile Feel: Palpable only at the deep level near the bone.
   • Significance: Interior Syndrome. Deep-forceful indicates Interior Excess/Cold; Deep-weak indicates Interior Deficiency/Yang deficiency.
2. Firm / Confined Pulse (Lao Mai):
   • Tactile Feel: Deep, hard, wiry, long, forceful, immoveable.
   • Significance: Interior Cold Accumulation, hernia, fixed abdominal masses (Zheng Jia), severe pain.
3. Hidden Pulse (Fu Mai):
   • Tactile Feel: Extremely deep; requires pressing firmly past tendons to the periosteum.
   • Significance: Severe pain, syncope, Yang collapse, extreme cold obstruction.

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Category C: Slow Pulses (Less than 4 beats per breath / <60 bpm)

1. Slow Pulse (Chi Mai):
   • Tactile Feel: Less than 4 beats per breath (<60 bpm).
   • Significance: Cold Syndrome. Slow-forceful: Interior Excess Cold; Slow-weak: Yang Deficiency Cold.
2. Moderate Pulse (Huan Mai):
   • Tactile Feel: Balanced, 4 beats per breath, relaxed, moist, gentle rhythm.
   • Significance: Normal healthy pulse; or Spleen Deficiency with Dampness.
3. Rough / Choppy Pulse (Se Mai):
   • Tactile Feel: Slow, fine, uneven, hesitant, like a knife lightly scraping bamboo (Ru Dao Gua Zhu).
   • Significance: Blood Stasis, exhaustion of Jing and Blood, severe Qi stagnation.
4. Knotted Pulse (Jie Mai):
   • Tactile Feel: Slow rhythm with irregularly irregular missed beats (skips occur unpredictably).
   • Significance: Heart Yang deficiency, Cold retention, Heart Blood stasis, Phlegm obstruction.

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Category D: Rapid Pulses (More than 5 beats per breath / >90 bpm)

1. Rapid Pulse (Shu Mai):
   • Tactile Feel: More than 5 beats per breath (>90 bpm).
   • Significance: Heat Syndrome. Rapid-forceful: Full Heat; Rapid-thready: Empty Heat.
2. Hasty / Abrupt Pulse (Cu Mai):
   • Tactile Feel: Rapid rhythm with irregularly irregular missed beats.
   • Significance: Extreme interior Full Heat, Heart Fire, Phlegm-Heat, Yang hyperactivity.
3. Hurried / Racing Pulse (Ji Mai):
   • Tactile Feel: Extremely fast (>7–8 beats per breath / >120–140 bpm), agitated, tremulous.
   • Significance: Exhaustion of True Yin; impending Yang collapse.
4. Moving / Stirred Pulse (Dong Mai):
   • Tactile Feel: Rapid, short, slippery, rounded like a spinning bean, palpable only at the Guan position.
   • Significance: Severe fright, shock, acute physical trauma, severe pain.
5. Intermittent Pulse (Dai Mai):
   • Tactile Feel: Stops at regularly regular intervals (predictable missed beats after a set count).
   • Significance: Zang Organ Qi Exhaustion, serious cardiac pathology, extreme fear, trauma.

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Category E: Forceful / Strength Pulses

1. Full / Excess Pulse (Shi Mai):
   • Tactile Feel: Big, long, forceful, hard at all three positions and all depths.
   • Significance: Interior Full Excess Pattern (Full Heat, Food Stagnation, Phlegm).
2. Surging / Flooding Pulse (Hong Mai):
   • Tactile Feel: Arrives broad, forceful, overflowing like a crashing wave, departs debilitated.
   • Significance: Yangming Qi Level Heat (Extreme Interior Full Heat).
3. Tight / Tensile Pulse (Jin Mai):
   • Tactile Feel: Tense, forceful, vibrating like a twisted cord or stretched rope.
   • Significance: Severe Cold, acute pain, Food Stagnation.
4. Long Pulse (Chang Mai):
   • Tactile Feel: Straight, supple, extending beyond the Cun and Chi positions.
   • Significance: Excess Heat, Yang excess; or normal constitutional vitality.
5. Wiry / String-Taut Pulse (Xuan Mai):
   • Tactile Feel: Straight, long, taut, like a plucked guitar string, rebounds sharply against fingers.
   • Significance: Liver / Gallbladder Disharmonies, Phlegm retention, pain, malaria.

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Category F: Weak / Shape Pulses

1. Thin / Fine Pulse (Xi Mai):
   • Tactile Feel: Narrow and straight like a silk thread, but distinct and clear.
   • Significance: Blood Deficiency, Yin Deficiency, or Dampness compressing vessels.
2. Minute / Faint Pulse (Wei Mai):
   • Tactile Feel: Extremely fine, soft, indistinct, barely palpable; cut off by slight pressure.
   • Significance: Extreme exhaustion of Qi, Blood, and Yang.
3. Short Pulse (Duan Mai):
   • Tactile Feel: Fails to fill the Cun and Chi positions; palpable primarily at Guan.
   • Significance: Short-forceful: Qi Stagnation; Short-weak: Qi Deficiency.
4. Weak Pulse (Ruo Mai):
   • Tactile Feel: Deep, soft, thready; felt only at the deep level without strength.
   • Significance: Deficiency of both Qi and Blood, Yang deficiency.
5. Slippery Pulse (Hua Mai):
   • Tactile Feel: Smooth, rounded, fluid, rolling like pearls on a porcelain dish (Ru Pan Zou Zhu).
   • Significance: Phlegm, Dampness, Food Stagnation, Full Heat, or Normal Pregnancy.

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High-Yield Diagnostic Pulse Combinations

• Floating-Tight (Fu Jin): Exterior Wind-Cold.
• Floating-Rapid (Fu Shu): Exterior Wind-Heat.
• Deep-Slow-Weak (Chen Chi Ruo): Interior Yang Deficiency Cold.
• Slippery-Rapid (Hua Shu): Phlegm-Heat, Damp-Heat, or Food Retention transforming into Heat.
• Wiry-Rapid (Xian Shu): Liver Fire Blazing or Liver Yang Rising.
• Thready-Rapid (Xi Shu): Yin Deficiency with Empty Heat.
• Deep-Wiry (Chen Xian): Liver Qi Stagnation or Interior Cold Pain.

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3. Channel Palpation (Jing Luo Qie Zhen)

Channel palpation involves running the thumb and index finger along primary channel trajectories to evaluate physical texture, subcutaneous morphology, and tissue tone:

• Subcutaneous Nodules and Cords: Hard nodules along the Lung channel (e.g., LU 6) or Liver channel (LR 5) indicate chronic Phlegm or Blood stasis.
• Tenderness at Xi-Cleft Points: Acute tenderness upon palpating a Xi-Cleft point confirms acute pain, obstruction, and inflammation in the corresponding organ.
• Tissue Flaccidity and Emptiness: Soft, hollow depressions along a channel indicate chronic Qi and Blood deficiency.
• Temperature Shifts: Localized coolness indicates Cold or Yang deficiency; heat indicates localized channel inflammation.

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4. Abdominal Palpation (Hara Diagnosis / Fu Zhen)

In Japanese Meridian Therapy (Keiraku Chiryo) and classical TCM, abdominal palpation provides direct assessment of the Zang-Fu viscera and Original Qi (Yuan Qi).

                     [ ABDOMINAL PALPATION ZONES (HARA) ]

                               [ EPIGASTRIUM / REN 12 ]
                               Stomach & Middle Jiao
                               Fullness = Food Stagnation
                               Flaccid = Stomach Qi Def
                                      /
       [ SUBCOSTAL / RIGHT ]         /        [ SUBCOSTAL / LEFT ]
       Liver / Gallbladder          /         Liver Qi Stagnation
       Fullness (Sho-kan)          /          Tension & Resistance
               \                  /                  /
                +----------------+------------------+
                                 |
                        [ UMBILICUS / REN 8 ]
                        Yuan Qi / Shen Root
                        Bounding Pulse = Floating Yang
                                 |
                    [ LOWER ABDOMEN / REN 4 & 6 ]
                    Kidney Yang & Ming Men
                    Soft Depression = Kidney Def (Kyo)
                    Hard Resistance = Blood Stasis (Jitsu)

Key Abdominal Diagnostic Zones

• Epigastrium / Ren 12 (Zhong Wan) Zone: Reflects the Stomach and Middle Burner. Softness and lack of resistance indicate Stomach Qi deficiency. Hard distension with tenderness indicates Food Stagnation, Phlegm, or Stomach Fire.
• Subcostal / Hypochondriac Region: Palpated beneath the costal margins. Tension, guarding, and pain upon palpation (Sho-kan) indicate Liver Qi Stagnation or Gallbladder Heat.
• Umbilicus / Ren 8 (Shen Que) Zone: Reflects Original Qi (Yuan Qi). Bounding, hyperactive aortic pulsations around the navel indicate floating Yang or severe Kidney Yin deficiency.
• Lower Abdomen / Hypogastrium (Ren 4 Guan Yuan & Ren 6 Qi Hai): Reflects Kidney Yang, Ming Men, and the Lower Burner. Flaccid, soft depression lacking rebound tone (Kyo) indicates Kidney Yang or Jing deficiency. Hard, tender, resistant masses (Jitsu) indicate uterine Blood stasis (Oketsu) or Bladder Damp-Heat.