Shao Yang Disease Patterns
Introduction
The Shao Yang conformation occupies a pivotal position within the Six Conformational framework of the Shang Han Lun. Neither fully exterior like Tai Yang nor fully interior like Yang Ming, it represents the hinge — the dynamic pivot through which pathogenic influence either resolves outward or penetrates inward. For this reason, its pathology is characterized by alternation, not by simple excess or deficiency, but by a struggle between right qi and pathogenic qi that has not yet found resolution.
Defined in line 263 of the Shang Han Lun as presenting bitter taste in the mouth, dry throat, and dizzy vision, Shao Yang disease reflects the disturbance of Ministerial Fire at its root. When the pivot fails to course freely, stagnation generates heat; when Yang fails to expand, fluids fail to transform. Thus dryness and dampness, heat and cold, excess and weakness may all appear, but always in alternation.
Drawing also from the cosmological foundations of the Huangdi Neijing, this discussion explores Shao Yang not merely as a collection of symptoms, but as a manifestation of its root in fire, its relationship to the San Jiao, and its role as mediator between the interior and exterior. Through classical lines, pattern differentiation, and formula analysis, we examine how the pivot may be recognized when constrained, and how it may be restored when harmonized.
Signs
Shao yang disease is defined in line 263 in the Shang Han Lun as one of heat and dryness manifesting.
It states, In disease of the shao yang there is a bitter taste in the mouth, dry throat, and dizzy vision.
Yet, it is line 96 that lists the Bing Ji Disease Triggers. In line 96 we see the alternating pattern of disease emerge.
Shao yang disease can manifest as neutral, but still alternating. It can also manifest as mainly cold or mainly warm, but still alternating.
The reason for this is due to the nature of the Yang not yet big. If Yang fails to grow and become Tai yang then there will be cold signs and the manifestation of dampness. The dampness arises due to weak Yang failing to transform the fluids. Yang when weak can also fail to collect, cool, and descend in the Yang ming Conformation.
Bitter taste in the mouth, dry throat, dizzy vision
When the free flow of Qi becomes inhibited heat develops and this causes a bitter taste in the mouth. The Shao yang channel enters the throat and when drying of fluids occurs there is a dry throat. The Shao yang channel ends at the eye so when heat and dryness arise there will be dizzy vision.
Bitter is the taste associated with the Fire Agent of Transformation.
口苦
Bitter taste in the mouth Kǒu kǔ
咽乾
Dry throat Gān gān (Sometimes written simply as 咽干 in simplified form.)
目眩
Dizzy vision Mù xuàn
These three — 口苦，咽乾，目眩 — form the classic triad of Shao Yang presentation.
Alternating aversion to cold and heat effusion
When the Imperial Heat becomes weak and cold, the Ministerial Fire also becomes weak and cold. Due to the dryness nature of the weakness heat can arise from stagnation of True Fire and Water.
This alternating pattern is different from cold and heat seen in Tai yang disease and Yang ming disease.
In Tai yang disease there is simultaneous cold and heat effusion.
In Yang ming disease there is heat effusion without cold aversion.
Shao yang patterns can arise in combination with other levels.
Tai yang and Shao yang
When the Tai yang wind strike pattern arises there is a drying of fluids and if excessive this effects the circulation of the Ministerial Fire in all three Burners. There will be alternating aversion to cold, but also stagnation that causes heat.
Yang ming and Shao yang
Damage to fluids causes a dryness in Yang ming and Shao yang. In this combination pattern there will be more heat effusion than cold.
Yang ming, Shao yang and Tai yin.
In this combination pattern there will be more cold and dampness than heat effusion.
Chest and rib side fullness
When excess accumulates in the Shao yang realm the channel Qi is congested and distension and fullness arises in the chest and rib sides.
This is often associated with pain and tightness in the left lower abdomen. This is called Oketsu in Japanese Hara Diagnosis.
Taciturn, with no desire to eat
Ability to eat depends on Earth being healthy. Desire to eat depends on Wood being healthy. In Shao yang disease Wood is weak, with quietness and no desire for food.
默默 (mò mò).
The character:
· 默 means silent, quiet, not speaking.
· Repeated as 默默, it conveys a state of withdrawn silence, subdued muttering, or taciturn quietness.
In the Shang Han Lun, mo mo frequently appears in descriptions of Shao Yang disorders - for example:
默默不欲飲食
“Taciturn, with no desire to eat or drink.”
Heart vexation
The heat that arises from the stagnation of the Shao yang causes a vexed feeling or mental unrest.
心煩
Literally means the Heart is agitated by heat.
心 xīn — Heart.
Not only the anatomical organ, but the center of consciousness, awareness, and spirit (神).
煩 fán — to be agitated, disturbed, restless, heated, annoyed.
The character carries the sense of internal heat causing turbulence.
Frequent retching
Counterflow Qi of the Yang ming Stomach organ causes frequent retching. The causes can be from heat or Yang weakness that causes Counterflow Qi.
A stringlike pulse
A stringlike pulse corresponds with Shao yang disease. A thin wiry or wiry tight pulse are a Yin pulse, indicating the accumulation of fluids and weakness.
All big (also long), floating, rapid, stirring (dong), and slippery pulses are called Yang.
All deep, unsmooth, weak, wiry (also tight), faint and hollow and bound are called Yin.
Basic Shao Yang Pattern
Bitter taste in the mouth, dry throat, dizzy vision, alternating aversion to cold and heat effusion, chest and rib side fullness, silent and no desire to eat, vexation, frequent retching, xiao chai hu tang
Combined Patterns
Tai yang and Shao yang
Alternating aversion to cold and heat effusion, joint pain, retching, and vexation, chai hu gui zhi tang
Yang ming and Shao yang
Alternating aversion to cold and heat effusion, fullness in the chest and rib-side, retching, depression, and vexation, hard glomus below the heart, da chai hu tang and chai hu jia mang xiao tang
Yang ming and Shao yang with cold dominating
Chest and rib side fullness, alternating aversion to cold and heat effusion but with more cold than heat, vexation, thirst, and inhibited urination, chai hu gui zhi gan jiang tang
Yang ming, Shao yang, Tai yin and Shao yin
With more fear and fright and upward rushing of Heart Yang Qi, chai hu jia long gu muli tang
Shao Yang
Shao yang conformation of the Ministerial fire
In the flowing text the way that each of the Conformations manifests as disease is described. Each of the Conformations has a different way of manifesting. I used two different text from The Yellow Emperor’s Classic to illustrate this manifesting.
Chapter 66
These are what is called Root; these are the so-called six principal qi.
What is above in jue yin, the wind rules it.
What is above in shao yin, the heat rules it.
What is above in tai yin, dampness rules it.
What is above in shao yang, the ministerial fire rules it.
What is above in yang ming, the dryness rules it.
What is above in tai yang, cold rules it.
Wang Bing
The three yin and yang constitute the Tip.
Cold, dryness, fire, dampness, heat, wind constitute the Root.
Chapter 74
Qi Bo,
The shao yang and the tai yin conform to the root.
The shao yin and the tai yang conform to the tip and root.
The yang ming and the jue yin conform to neither the tip nor the root, they conform to the center.
The Shao yang and the Tai yin conform to the root.
Wang Bing, The root of shao yang is fire, the root of tai yin is dampness. Root and tip agree, hence the text states, they confirm to their root.
The Shao yin and the Tai yang conform to the tip and root.
Wang Bing, The root of shao yin is heat, its tip is yin. The root of the tai yang is cold, its tip is yang.
The Yang ming and the Jue yin conform to neither the tip nor the root, they conform to the center.
Wang Bing, Within the yang ming is tai yin and within the jue yin is shao yang. Root and tip differ from what is in the center.
The root of shao yang is fire
263 In disease of shao yang, there is bitter taste in the mouth, dry throat, and dizzy vision.
The root manifests as excess fire.
264 When in shao yang wind strike, there is no hearing in either ear, the eyes are red, and there is fullness in the chest and vexation, one cannot use vomiting or precipitation, as vomiting and precipitation will lead to palpitations and fright.
The root manifests as excess fire.
265 When in cold damage the pulse is string like and fine and there is headache and heat effusion, this belongs to shao yang. In shao yang one cannot promote sweating, as sweating will lead to delirious speech, which belongs to the stomach. If the stomach is harmonized there will be recovery and if the stomach is not harmonized, there will be vexation and palpitations.
The root manifests as excess fire.
Pattern Identification
Basic Pattern
Xiao chai hu tang
Line 96 When in cold damage that has lasted for five or six days or wind strike, there is alternating aversion to cold and heat effusion, the person suffers from fullness in the chest and rib side, taciturnity with no desire for food and drink, heart vexation and frequent retching, or possibly there is vexation in the chest and no retching, or thirst or pain in the abdomen, or a hard glomus under the rib side, or palpitations below the heart with inhibited urination, or absence of thirst with mild generalized heat, or cough, then xiao chai hu tang governs.
Line 97 When the blood is weak and the qi is exhausted, the interstices are open, and because evil qi enters the body and contends with right qi, there is binding under the rib side. The right and the evil struggle by turns, so there is alternating aversion to cold and heat effusion that stops and starts periodically, and taciturnity with no desire for food and drink. The viscera and bowels are interconnected, and so the pain will be low down, the evil high up and the pain is low down, hence there is retching and xiao chai hu tang governs. When after taking xiao chai hu tang there is thirst, this belongs to yang ming and one should use the appropriate method to treat it.
Line 266 When originally there was tai yang disease that was unresolved and thereby shifted into the shao yang, there is hardness and fullness under the rib side, dry retching and inability to eat, and alternating aversion to cold and heat effusion. When neither vomiting treatment nor precipitation has yet been used and the pulse is sunken and tight, one should give xiao chai hu tang.
Line 99 When in cold damage that has lasted four or five days there is generalized heat effusion and aversion to wind, stiffness of the neck and nape, fullness under the rib side, warm extremities and thirst, then xiao chai hu tang governs.
Line 100 When in cold damage, the yang pulse is rough and the yin pulse is stirring, as a rule, there should be acute pain in the abdomen, so one should first give xiao jian zhong tang and if there is no improvement, giving xiao chai hu tang governs.
Line 101 When in cold damage or wind strike, there are chai hu signs, only one sign means that this is the pattern, they do not all have to be present. Whenever a chai hu tang disease pattern is treated by precipitation, if the chai hu tang pattern has not ceased, one can give chai hu tang again. There will be streaming and quivering, then heat effusion and sweating again, by which the disease resolves.
Line 229 When in yang ming disease, there is tidal heat effusion, sloppy stool, normal urination, and fullness in the chest and rib-side that will not go, give xiao chai hu tang.
Line 230 When in yang ming disease, there is hardness and fullness under the rib-side, inability to defecate, retching, and white fur on the tongue, one can give xiao chai hu tang. The upper burner will unblock, and liquid and humor will be able to descend, stomach qi will become harmonious, and there will be generalized streaming sweat, bringing about resolution.
Line 148 When cold damage has lasted for five or six days, and there is seating from the head, mild aversion to cold, cold extremities, fullness below the heart, absence of desire to eat, hard stool, and a pulse that is fine, this means mild yang bind, and there must be exterior signs as well as interior signs. A pulse that is sunken means that the evil is in the interior. Sweating means mild yang bind. If there is pure yin bind, there can no longer be any exterior signs since everything has entered the interior, whereas the pattern of mild yang bind is half in the interior and half in the exterior. Although the pulse is sunken and tight, it does not indicate shao yang disease. Why this is so is because with yin disease there will be no sweating and now, in the present case, sweat issues from the head, therefore, one knows this is not shao yang disease. One can give xiao chai hu tang and if the pattern does not clearly resolve, once the stool passes, there will be resolution.
Line 98 When in an illness that the person has had for six or seven days, the pulse is slow, floating, and weak, and there is aversion to wind and cold, and warm extremities, and the physician precipitates two or three times, there is inability to eat, pain and fullness under the rib-side, yellowing of the eyes, face and body, stiffness of the neck and nape, and difficult urination. After xiao chai hu tang is given, there will be rectal heaviness. When originally there was thirst with retching following water intake, xiao chai hu tang should not be given, and when food is taken there will be hiccup.
Transmuted Patterns
Chai hu gui zhi tang
Line 146 When in cold damage that has lasted for six or seven days, there is heat effusion, mild aversion to cold, vexing pain of the limb joint, mild retching, propping below the heart, and the exterior pattern is still present, chai hu gui zhi tang governs.
Chai hu gui zhi tang treats acute pain in the heart and abdomen.
Da chai hu tang
165 When in cold damage there is heat effusion and sweating that brings no resolution, hard glomus below the heart, retching, vomiting, and diarrhea, then da chai hu tang governs.
When touched, there is fullness and pain under the heart, for this is excess, and should be purged, for which da chai hu tang governs.
Chai hu jia mang xiao tang
Line 104 Here in cold damage that has not resolved in thirteen days and there is fullness in the chest and rib-side, retching, late afternoon tidal heat effusion, and shortly afterward mild diarrhea. This was originally a da chai hu tang pattern in which precipitation should not cause diarrhea, yet now in the present there is diarrhea, so one knows a pill medicine was used to precipitate, and this is not the appropriate treatment. Tidal heat effusion means repletion. It is appropriate to first take xiao chai hu tang in order to resolve the external aspect. Afterward, chai hu jia mang xiao tang governs.
When in cold damage that has lasted for eight or nine days, precipitation is used, and there is fullness in the chest, vexation and fright, inhibited urination, delirious speech, heaviness of the entire body, and inability to turn sides, chai hu jia long gu muli tang governs.
Chai hu gui zhi gan jiang tang
147 When cold damage has lasted five or six days, and sweating has been promoted and then precipitation has been used and there is fullness in the chest and rib-side and mild bind. Inhibited urination, thirst without retching, sweating only from head, alternating aversion to cold and heat effusion, and heart vexation, it means that the disease has not yet resolved, therefore chai hu gui zhi gan jiang tang governs.
Chai hu jiang gui tang treats malaria with mostly cold, and mild heat, or only cold and not heat.
Chai hu jia long gu mu li tang
107 When in cold damage that has lasted for eight or nine days, precipitation is used, and there is fullness in the chest, vexation and fright, inhibited urination, delirious speech, heaviness of the entire body, and inability to turn sides, chai hu jia long gu muli tang governs.
Main Shao Yang Herbs
All herbs are described according to how they interact with one or more of the Six Conformations. It is my intent to keep the description short, and mainly address the best qualities of each herb, not all its characteristics.
Chai hu, Bupleuri radix
Tai yang Chai hu clears heat congestion on the surface.
Shao yang Chai hu clears damp and heat in the san jiao.
Huang qin, Scutellariae radix
Yang ming Huang qin clears damp and heat in stomach domain.
Shao yang Huang qin clears damp and heat from san jiao and gall bladder.
Jue yin Huang qin clears heat to cool liver blood.
Ban xia, Pinelliae rhizome
Yang ming Ban xia dries dampness and moves qi in stomach domain.
Tai yin Ban xia tonifes and warms and dries spleen and lung.
Sheng jiang, Zingiberis rhizoma recens
Tai yang Sheng jiang warms the surface.
Yang ming Sheng jiang tonifies and disperses excess fluids in stomach.
Tai yin Sheng jiang tonifies and warms spleen and lung and sends clear qi upwards.
Ren shen, Ginseng radix
Tai yin Ren shen tonifies spleen and lung while moistening and raising clear qi.
Shao yin Ren shen tonifies original qi.
Da zao, Jujubae fructus
Tai yin Da zao tonifies spleen while moistening.
Jue yin Da zao nourishes blood.
Zhi gan cao, Glycyrrhizae radix prep stir fried with honey
Yang ming Zhi gan cao tonifies stomach while moistening.
Tai yin Zhi gan cao tonifies spleen while moistening.
Shao yin Zhi gan cao nourishes heart blood.
Gui zhi, Cinnamomi cassiae ramulus
Tai yang Gui zhi warms the surface, warms tai yang bladder.
Shao yin Gui zhi warms imperial fire to warm ministerial fire.
Bai shao, Paeoniae radix lactiflora
Jue yin Bai shao nourishes and moves blood.
Zhi shi, Aurantii fructus immaturus
Yang ming Zhi shi descends excess accumulation in stomach domain.
Shao yang Zhi shi drains accumulations and moves qi in liver and gallbladder.
Da huang, Rhei rhizoma
Yang ming Da huang clears accumulations of stool and heat.
Mang xiao, Natrii sulfas
Yang ming Mang xiao moistening and descending.
Tian hua fen, Trichosanthis radix
Tai yang Tian hua fen clears dampness and heat on the surface.
Tai yin Tian hua fen clears damp and heat in the lungs.
Mu li, Ostrea concha
Shao yin Muli reconnects the kidneys with the heart to warm the surface, softens hardness and anchor yang.
Fu ling, Poria
Shao yin Fu ling moves water.
Long gu, Mastodi fossilium ossis
Long gu Shao yin anchors and nourishes true water.
Long gu Jue yin calms wind.
Dai zhe shi, Haematitum
Dai zhe shi Jue yin calms wind
Formulas According to Conformations
The following formulas are listed and described for reference. I only describe the Conformations influenced by the herbs in the formulas to express the normal physiology of the body.
Xiao chai hu tang
chai hu 24 huang qin 9 ban xia 12 sheng jiang 9 ren shen 9 da zao 9 zhi gan cao 9
Basic shao yang pattern, yang ming, shao yang, tai yin
Transmuted patterns
Chai hu gui zhi tang
chai hu 24 huang qin 9 ban xia 12 ren shen 9 gui zhi 9 bai shao 9 sheng jiang 9 da zao 9 gan cao 9
Basic shao yang pattern, tai yang, yang ming, shao yang, tai yin, shao yin, jue yin
Da chai hu tang
chai hu 24 huang qin 9 ban xia 12 sheng jiang 15 da zao 9 zhi shi 6 bai shao 9 da huang 6
Yang ming, shao yang, tai yin, jue yin
Chai hu jia mang xiao tang
chai hu 24 huang qin 9 ban xia 9 ren shen 9 sheng jiang 9 da zao 9 zhi gan cao 9 mang xiao 18
Yang ming, shao yang, tai yin
Chai hu gui zhi gan jiang tang
chai hu 24 gui zhi 9 gan jiang 6 huang qin 9 tian hua fen 12 mu li 6 zhi gan cao 6
Tai yang, yang ming, shao yang, tai yin
Chai hu jia long gu mu li tang
chai hu 24 huang qin 9 ban xia 12 ren shen 9 sheng jiang 9 gui zhi 9 fu ling 9
long gu 9 mu li 9 da huang 12 da zao 6 dai zhe shi 9
Tai yang, yang ming, shao yang, tai yin, shao yin
Conclusion
Shao Yang is the hinge of transformation.
When the Ministerial Fire moves freely, the pivot turns, Clear Qi rises and Turbid Qi descends, and the organism remains in dynamic equilibrium. But when constraint seizes the pivot, heat and cold alternate, the chest and rib-side become full, silence replaces appetite, and vexation disturbs the Heart. The disease does not fully enter, nor does it fully resolve - it lingers at the gate.
The genius of the Shang Han Lun lies in its precision: even one Chai Hu sign is sufficient. The pattern need not be complete to be real. By recognizing the disease trigger - the alternating struggle, the constrained pivot, the fire at the root - treatment does not attack, purge, or force. It harmonizes.
The Chai Hu formulas do not merely clear heat or expel pathogens. They restore movement to what has stalled. They reestablish communication between the burners. They free the Ministerial Fire so that it may again assist the Imperial Flame without rebellion.
When the pivot turns, alternation ceases.
When the pivot turns, the fluids flow.
When the pivot turns, fire returns to its proper root.
Thus Shao Yang teaches us that disease at the hinge is not resolved by force, but by restoring the capacity to transform.
