# Why Does TCM Say "Same Disease, Different Treatment"? The Pattern (证象, zhèng xiàng) Is the Body's "Comprehensive Diagnostic Report"
A Question
Have you ever noticed that two people have the same cold, but one gets better after drinking ginger soup, while the other gets worse after drinking ginger soup? Have you ever noticed that you and your friend both have "insomnia," but sleeping pills work for you and not for her—you ask: "Why is the treatment different for the same disease?"
Even more surprisingly, TCM says "colds are divided into wind-cold, wind-heat, and summer-dampness," and you ask: "Aren't they all viruses?" Western medicine says "insomnia is divided into difficulty falling asleep, difficulty maintaining sleep, and early waking," while TCM says "insomnia is divided into heart-spleen deficiency, liver stagnation transforming into fire, and heart-kidney non-communication"—which one is more precise?
And there's another question: you ask Western medicine, "What disease do I have?" Western medicine says "gastritis." You ask TCM, and TCM says "spleen-stomach deficiency-cold pattern"—you ask: "What is 'pattern'? Why isn't it a disease?"
What exactly is the pattern (象, xiàng)?
Traditional Chinese Explanation
The concept of "pattern" is the core of TCM diagnosis. The Yellow Emperor's Inner Classic says: "What is inside must be manifested outside" (有诸内必形诸外)—pathological changes inside the body are inevitably manifested on the outside. TCM does not look at disease names; it looks at "pattern" (证象, zhèng xiàng)—a comprehensive judgment based on a group of symptoms, signs, tongue appearance, and pulse.
The ancients observed that the same disease (such as a cold) manifests differently in different people. Some are afraid of the cold, have clear nasal discharge, and have a white tongue coating; some have a fever, sore throat, and yellow phlegm; some have dizziness, chest tightness, and nausea. The same disease name, but different "patterns"—the treatment is completely different.
Pattern = symptoms + signs + tongue appearance + pulse. It's not a single indicator; it's a comprehensive judgment. Just like a detective solving a case, you need to collect multiple clues: fingerprints at the scene, witness testimony, surveillance footage—only when combined can you identify the suspect.
Eight-Principles Pattern Differentiation (八纲辨证, bā gāng biàn zhèng) — Yin-yang, exterior-interior, cold-heat, deficiency-excess. This is the most basic pattern differentiation framework in TCM.
• Yin-yang (阴阳, yīn yáng): The general principle. Yang pattern = hyperactivity, heat, excess; Yin pattern = inhibition, cold, deficiency.
• Exterior-interior (表里, biǎo lǐ): The location of the disease. Exterior pattern = external pathogen on the body surface (early stage of a cold); Interior pattern = pathogen deep inside the internal organs (pneumonia, gastritis).
• Cold-heat (寒热, hán rè): The nature of the disease. Cold pattern = aversion to cold, preference for warmth, white tongue coating; Heat pattern = fever, preference for coolness, yellow tongue coating.
• Deficiency-excess (虚实, xū shí): The momentum of the disease. Deficiency pattern = insufficient function (fatigue, shortness of breath, spontaneous sweating); Excess pattern = hyperactivity of pathogenic factors (pain, fullness, constipation).
For example: a cold. The same "viral upper respiratory tract infection" (Western disease name), but TCM divides it into:
• Wind-cold pattern (风寒证, fēng hán zhèng): aversion to cold, no sweating, clear nasal discharge, white tongue coating, floating and tight pulse (fú jǐn mài) — Treatment principle: release the exterior with acrid-warm (ginger soup, Ephedra Decoction, 麻黄汤, má huáng tāng).
• Wind-heat pattern (风热证, fēng rè zhèng): fever, sweating, sore throat, yellow phlegm, yellow tongue coating, floating and rapid pulse (fú shù mài) — Treatment principle: release the exterior with acrid-cool (Honeysuckle and Forsythia Powder, 银翘散, yín qiào sǎn; Mulberry and Chrysanthemum Drink, 桑菊饮, sāng jú yǐn).
• Summer-dampness pattern (暑湿证, shǔ shī zhèng): dizziness, chest tightness, nausea, heavy body, greasy tongue coating — Treatment principle: clear summer-heat and transform dampness (Newly Supplemented Elsholtzia Drink, 新加香薷饮, xīn jiā xiāng rú yǐn).
The same disease, three "patterns," three treatments. This is "same disease, different treatment" (同病异治, tóng bìng yì zhì)—the core logic of TCM.
Conversely, different people with different diseases, but the same "pattern," can be treated with the same formula. For example: gastroptosis, uterine prolapse, and rectal prolapse—three different diseases (Western medicine), but TCM considers all of them to be a "central qi sinking pattern" (中气下陷证, zhōng qì xià xiàn zhèng) (spleen deficiency and qi deficiency, unable to lift), and all use "Tonify the Middle and Augment the Qi Decoction" (补中益气汤, bǔ zhōng yì qì tāng). This is "different diseases, same treatment" (异病同治, yì bìng tóng zhì).
So, what the ancients called "pattern" is not just "symptoms" but rather a "health snapshot" of a group of comprehensive information—determining the treatment principles and methods. The pattern is the "core code" of TCM diagnosis.
Coach Liu's Modern Translation
Okay, now let's translate "pattern" into modern terms.
I don't intend to talk about patternology, genomics, or metabolomics. Too complicated. You only need to remember one metaphor:
The pattern is a "comprehensive portrait" of a group of pathophysiological characteristics.
It's that simple. The "pattern" is essentially a comprehensive portrait of a group of pathophysiological characteristics—like a physical examination report, not looking at just one indicator, but making a comprehensive judgment.
Specifically:
What does "wind-cold cold" correspond to? It corresponds to the low-metabolic state in the early stage of a viral infection. The external pathogen (virus) invades the body surface, the immune system initiates an early response, but the inflammatory response has not yet been fully activated. Peripheral blood vessels constrict (aversion to cold), sweat glands are inhibited (no sweating), and nasal mucus secretion increases (clear nasal discharge). This is consistent with TCM's description of "wind-cold"—cold causes contraction, the interstitial spaces are closed, and the pores are shut.
What does "wind-heat cold" correspond to? It corresponds to the inflammatory response period after a viral infection. The immune system is activated, inflammatory mediators are released (IL-1, IL-6, TNF-α), the temperature regulation center is turned up (fever), blood vessels dilate (sweating), and mucosal inflammation occurs (sore throat, yellow phlegm). This is consistent with TCM's description of "wind-heat"—heat causes dispersion, the interstitial spaces are open, and the inflammatory response is activated.
What does "spleen-stomach deficiency-cold" correspond to? It corresponds to decreased digestive function + increased vagal tone. Gastric mucosal atrophy, decreased gastric acid secretion, slowed gastrointestinal motility ("cold"), and overall decreased digestive function ("deficiency"). Increased vagal tone leads to increased gastrointestinal secretion but insufficient motility, resulting in bloating and loose stools. This is consistent with TCM's description of "spleen-stomach deficiency-cold"—the spleen governs transportation and transformation, and when there is deficiency-cold, transportation and transformation are weak.
What does "liver stagnation and qi stagnation" correspond to? It corresponds to autonomic nervous system dysfunction + smooth muscle spasm. Long-term emotional stress causes an imbalance between the sympathetic and parasympathetic nervous systems, leading to smooth muscle spasm (rib pain, chest tightness, stomach bloating), and at the same time, abnormal function of the emotional regulation centers (amygdala, prefrontal cortex). This is consistent with TCM's description of "liver stagnation and qi stagnation"—the liver governs the free flow of qi, and when qi is stagnant, emotions are not smooth and qi movement is blocked.
So, "pattern" is not mysticism. It is a "comprehensive portrait" of pathophysiological state—the ancients used symptom groups + tongue and pulse to depict it, while modern people use symptom groups + biomarkers + imaging to depict it—the core logic is the same: not looking at the disease name, but looking at the state.
Real-Life Stories
Four stories to help you instantly understand what "pattern" is.
Story One: Wind-cold cold (low-metabolic state).
You got caught in the rain, and when you got home, you started to feel aversion to cold, sneezing, and having a clear nasal discharge. You covered yourself with two quilts and still shivered. You took your temperature, 37.8°C, not a high fever. You drank ginger soup, broke out in a sweat, and got better. You ask: "Why did ginger soup work for me?"
The truth: This is the early stage of a viral infection, and the immune system has just started to react. Peripheral blood vessels constrict (aversion to cold), sweat glands are closed (no sweating), and nasal mucus secretion increases (clear nasal discharge). The body is in a "low-metabolism + vasoconstriction" state. The gingerol in ginger soup promotes blood circulation, induces sweating and releases the exterior, and helps the body raise its temperature, open the pores, and expel the pathogen. It's not "ginger soup kills bacteria"; it's ginger soup helps the body adjust its state. TCM says "wind-cold pattern, release the exterior with acrid-warm"—a precise description of the external pathogen invasion in a low-metabolic state. The "pattern" of "wind-cold" determines the use of ginger soup instead of isatis root (板蓝根, bǎn lán gēn).
Story Two: Wind-heat cold (inflammatory response).
Your colleague also caught a cold, but his symptoms were completely different: a high fever of 39°C, a sore throat like swallowing a knife, yellow phlegm that couldn't be coughed out, and thirst for cold water. He drank ginger soup and felt worse. TCM says "wind-heat pattern, release the exterior with acrid-cool," and uses Honeysuckle and Forsythia Powder. You ask: "Why is it that he also has a cold, but he can't drink ginger soup?"
The truth: This is the inflammatory response period after a viral infection. The immune system is fully activated, a large amount of inflammatory mediators are released, the temperature regulation center is turned up (high fever), blood vessels dilate (flushed face), and mucosal inflammation occurs (sore throat, yellow phlegm). The body is in a "high-metabolism + inflammatory response" state. Ginger soup is hot in nature, and it fuels the internal heat, worsening the inflammation. The honeysuckle and forsythia in Honeysuckle and Forsythia Powder have anti-inflammatory and antiviral effects, helping to reduce the inflammatory response. It's not "ginger soup is bad"; it's ginger soup was used for the wrong "pattern." TCM says "wind-heat pattern, avoid acrid-warm"—a precise description of the logic of same disease, different treatment.
Story Three: Spleen-stomach deficiency-cold (decreased digestive function).
You have long-term cold pain in your stomach, and you get diarrhea after eating anything cold. Your stools are loose and watery, you like to drink hot porridge, and your abdomen feels cold to the touch. Western medicine says "chronic gastritis," and TCM says "spleen-stomach deficiency-cold pattern," using Regulate the Middle Pill (理中丸, lǐ zhōng wán). You ask: "Why not anti-inflammatory drugs?"
The truth: This is decreased gastric mucosal function + increased vagal tone. Gastric acid secretion is decreased, gastric motility is insufficient, and digestive enzyme activity is decreased—overall digestive function is "decreased" (deficiency). High vagal tone leads to increased gastrointestinal secretion but insufficient motility, resulting in bloating and loose stools. Anti-inflammatory drugs (targeting inflammation) are ineffective for this situation, because the main problem is not inflammation, but decreased function. The dried ginger in Regulate the Middle Pill warms the middle and dispels cold, and the ginseng supplements qi and strengthens the spleen—helping to restore digestive function. It's not "gastritis needs anti-inflammatory treatment"; it's you need to look at the "pattern"—deficiency-cold needs warming and supplementation. The "pattern" of "spleen-stomach deficiency-cold" determines the use of Regulate the Middle Pill instead of antibiotics.
Story Four: Liver stagnation and qi stagnation (autonomic nervous system dysfunction).
You are under a lot of work pressure, often have chest tightness, rib pain, sighing, and emotional fluctuations, and are bloated and unable to eat. Western examination: normal ECG, normal gastroscopy, normal liver function. Western medicine says "functional dyspepsia, probably anxiety." TCM says "liver stagnation and qi stagnation pattern," using Bupleurum Liver-Soothing Powder (柴胡疏肝散, chái hú shū gān sǎn). You ask: "All the examinations are normal, so why are there still symptoms?"
The truth: This is autonomic nervous system dysfunction. Long-term emotional stress causes continuous sympathetic nervous system excitement, leading to smooth muscle spasm (chest tightness, rib pain, stomach bloating), and at the same time, an imbalance in the emotional regulation centers (overactive amygdala, decreased prefrontal cortex function). Western examinations are normal, because there is no structural problem, but a functional problem. TCM doesn't look at structure, but at the "pattern"—liver stagnation and qi stagnation is a functional qi stagnation. Bupleurum Liver-Soothing Powder helps regulate qi movement and relieve spasms. It's not "if the examination is normal, there is no disease"; it's for functional problems, you need to look at the "pattern." The "pattern" of "liver stagnation and qi stagnation" precisely summarizes the psychosomatic syndrome caused by stress.
Four stories, one underlying logic: the pattern is a "comprehensive diagnostic report"—not looking at the disease name, but looking at the state.
Modern Research
Is there scientific research on "pattern"?
Yes, and it is developing rapidly. Scientists don't use the term "pattern"; they use:
• Pattern and genomics. Research has found that patients with different "patterns" have different gene expression profiles. For example: in patients with "cold pattern," the expression of genes related to mitochondrial function is downregulated (low energy metabolism); in patients with "heat pattern," the expression of genes related to inflammation is upregulated. Patterns have a biological basis.
• Pattern and metabolomics. Through the analysis of metabolites in blood and urine, it has been found that different patterns have characteristic metabolic fingerprints. For example: in patients with "spleen deficiency pattern," short-chain fatty acid metabolism is abnormal; in patients with "kidney yang deficiency pattern," lipid metabolism and energy metabolism are disordered. Patterns have a metabolic basis.
• Personalized medicine and precision medicine. Modern medicine increasingly emphasizes "same disease, different treatment"—the same cancer, but different gene mutations, use different targeted drugs. The same hypertension, but different mechanisms, use different antihypertensive drugs. This is completely consistent with the core logic of TCM's "pattern differentiation and treatment" (辨证论治, biàn zhèng lùn zhì)—not looking at the disease name, but looking at the state.
Practical Methods
Now that you understand the "pattern," how do you use it?
First, dispel a few misconceptions:
• "TCM is unscientific because it doesn't look at examination reports." TCM looks at the "pattern," which is not about not looking at examinations, but about looking at the comprehensive state of examination + symptoms + signs + tongue and pulse. Modern medicine also increasingly emphasizes "comprehensive judgment"—a single indicator cannot determine treatment. It's not "TCM doesn't look at examinations"; it's TCM looks at the comprehensive state, not a single indicator.
• "I can self-diagnose my 'pattern' and buy medicine." There are many "self-test pattern" tests online, and after testing, you buy your own medicine. But pattern judgment requires professional training, and self-testing is prone to misjudgment. For example: "dry mouth" may be yin deficiency, or it may be damp-heat—the treatments are opposite. It's not "symptom matching"; it's patterns require professional judgment.
Specific methods:
• Record symptom groups (not just a single symptom). Don't just record "I have a cold"; record: are you averse to cold or heat? Do you have sweat or no sweat? Is your phlegm white or yellow? Are you thirsty or not? Is your tongue coating white or yellow? A group of symptoms constitutes a "pattern."
• Pay attention to tongue changes (an important indicator of the pattern). White tongue coating = cold / damp; yellow tongue coating = heat; greasy tongue coating = damp; little tongue coating = yin deficiency. Red edges of the tongue = liver heat; cracks in the middle of the tongue = stomach yin deficiency. The tongue appearance is a visual window of the "pattern," observe it every morning.
• Feel your own pulse (simple judgment of cold, heat, deficiency, and excess). Floating pulse (fú mài) = disease is in the exterior; deep pulse (chén mài) = disease is in the interior. Rapid pulse (shù mài) = heat pattern; slow pulse (chí mài) = cold pattern. Forceful pulse = excess pattern; weak pulse = deficiency pattern. Although precise pulse diagnosis requires professional training, the basic cold, heat, deficiency, and excess can be self-tested.
• Observe the emotional connection (mind and body are one). Do symptoms worsen after emotional fluctuations? Stomach bloating after getting angry = liver-stomach disharmony; insomnia after anxiety = heart-spleen deficiency; fatigue after depression = qi deficiency. The connection between emotions and symptoms is an important clue of the "pattern."
• Combine with the season (unity of heaven and man). In summer, it is easy to get "summer-dampness" (dizziness, chest tightness, nausea); in winter, it is easy to get "wind-cold" (aversion to cold, no sweating, clear nasal discharge); in spring, it is easy to get "liver stagnation" (emotional fluctuations, rib pain); in autumn, it is easy to get "lung dryness" (dry cough, dry mouth). The season is a background factor of the "pattern."
These methods don't require you to become a TCM doctor. You only need to understand: the pattern is a "comprehensive diagnostic report"—recording symptom groups, observing the tongue, and feeling emotions are collecting your own "health data."
One-Minute Summary
🕐 One-Minute Understanding of the "Pattern"
Pattern = The body's comprehensive diagnostic report + health snapshot.
TCM does not look at disease names; it looks at the "pattern"—a comprehensive judgment of a group of symptoms, signs, tongue, and pulse.
Same disease, different treatment: the same disease (a cold), but different patterns (wind-cold, wind-heat), so different treatments.
Different diseases, same treatment: different diseases (gastroptosis, rectal prolapse), but the same pattern (central qi sinking), so the same treatment.
Pattern = a comprehensive portrait of pathophysiological state.
Eight-Principles Pattern Differentiation: yin-yang (general principle), exterior-interior (disease location), cold-heat (disease nature), deficiency-excess (disease momentum).
Misconceptions: TCM doesn't look at examinations, self-diagnosing patterns and buying medicine.
Methods: record symptom groups, pay attention to the tongue, feel your own pulse, observe the emotional connection, combine with the season.
The ancients called it "pattern differentiation and treatment," modern people call it "precision medicine."
Different names, but medicine knows: not looking at the disease name, but looking at the state; not one prescription for a thousand people, but tailoring to the individual.
xiaokz · Concept 60
Using the language of modern science to help the world understand traditional Chinese wisdom.
No mysticism, no superstition, no belittlement.
Understanding, not just believing.