15/09/2025
In TCM, disease doesn’t come from just one cause — it arises from disharmony in the balance of Yin and Yang, the flow of Qi (vital energy), and the health of the Zang-Fu organs. The classical framework is called Bìng Yīn (病因) — the causes of disease.
🌿 Origins of Disease in TCM
1. External Causes (外因, Wài Yīn) – The “Six Evils”
These are external climatic factors that invade the body when its defenses are weak:
Wind (Fēng) → sudden, changing symptoms (colds, skin rashes, dizziness).
Cold (Hán) → pain, contraction, stiffness.
Heat/Fire (Rè/Huǒ) → fever, inflammation, restlessness.
Dampness (Shī) → heaviness, edema, sluggish digestion.
Dryness (Zào) → dry throat, skin, lungs.
Summer Heat (Shǔ) → exhaustion, dehydration.
☯ Normally, the body’s Wei Qi (defensive energy) protects us, but if it’s weak or the climate is extreme, these evils pe*****te and cause illness.
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2. Internal Causes (内因, Nèi Yīn) – The Emotions
Excessive or prolonged emotions disturb organ systems:
Anger → injures Liver → Qi stagnation, headaches, high blood pressure.
Joy (excessive excitement) → injures Heart → restlessness, palpitations.
Worry / Overthinking → injures Spleen → poor digestion, fatigue.
Sadness / Grief → injures Lung → short breath, low immunity.
Fear → injures Kidney → incontinence, weakness, infertility.
Shock → scatters Qi → palpitations, anxiety disorders.
⚖️ TCM doesn’t see emotions as “bad,” but when they’re excessive or stuck, they become roots of disease.
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3. Non-External, Non-Internal Causes (不内外因, Bù Nèi Wài Yīn)
These are “miscellaneous causes”:
Improper diet → overeating, too much greasy/sweet, raw or cold foods weaken Spleen/Stomach.
Overwork & Fatigue → depletes Qi and Blood.
Lack of exercise → Qi stagnation, phlegm accumulation.
Sexual excess → depletes Kidney Jing (essence).
Trauma or injuries → cause blood stasis and pain.
Parasites or toxins → disturb Qi and digestion.
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4. Congenital / Constitutional Weakness (先天不足, Xiān Tiān Bù Zú)
Some diseases originate from weak Kidney Jing (essence) inherited at birth.
This explains why some people are prone to certain illnesses, allergies, or developmental issues.
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5. Lifestyle & Disharmony with Nature
Not living in harmony with seasons, climate, sleep cycles disrupts Yin-Yang balance.
Example: staying up late harms Liver-Blood; eating cold foods in winter injures Kidney-Yang.
In TCM, the origin of disease is always about imbalance — between Yin & Yang, Qi & Blood, humans & nature, body & mind. External pathogens, internal emotions, and lifestyle factors all play a role, but the true root is usually a weakened organ system (esp. Spleen, Liver, or Kidney), making the body vulnerable.
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