How TCM Practitioners Assess Constitution
Constitution (体质, tǐ zhì) is the TCM concept for an individual's stable physiological and psychological pattern. It's shaped by genetics, environment, diet, and life events.
Quick Answer
- TCM practitioners classify body constitution (体质, tǐ zhì) into nine types using a standardized 60-question instrument from the China Association of Chinese Medicine (CACM).
- The nine types: Balanced (平和), Qi Deficient (气虚), Yang Deficient (阳虚), Yin Deficient (阴虚), Phlegm-Damp (痰湿), Damp-Heat (湿热), Blood Stasis (血瘀), Qi Stagnation (气郁), and Special Constitution (特禀).
- Assessment combines four diagnostic methods: looking (望), listening/smelling (闻), asking (问), and pulse-taking (切) — known as the "four examinations" (四诊).
- The Beijing University of Chinese Medicine team led by Prof. Wang Qi standardized the framework in 2009; it is now used in over 1.3 million primary-care visits per year across China (CACM, 2025).
Last updated: May 2026
Medical disclaimer: This is educational. TCM constitution typing is a traditional framework, not a Western diagnosis. It is not a substitute for medical evaluation. Talk to a licensed clinician for any health concern.
What Is "Constitution" in TCM?
Constitution (体质, tǐ zhì) is the TCM concept for an individual's stable physiological and psychological pattern. It's shaped by genetics, environment, diet, and life events.
The framework predates modern phenotype research by centuries. The Huang Di Nei Jing - Ling Shu (灵枢) chapter on "Yin and Yang Twenty-Five Types" laid out an early version around 200 BCE.
The modern nine-type system was standardized by Prof. Wang Qi at Beijing University of Chinese Medicine in 2009 (CACM Constitution Standard, 2009).
Why Constitution Matters in TCM Practice
In classical Chinese medicine, the same condition can be treated differently depending on the patient's constitution. A cough in a yang-deficient person calls for warming foods. The same cough in a yin-deficient person calls for moistening foods.
This is the operational core of yao shan (药膳, medicinal food) — diet recommendations follow constitution, not symptom alone.
What Are the Nine TCM Constitution Types?
| # | Type (中文) | Pinyin | Key Signs | Sample Foods |
|---|---|---|---|---|
| 1 | Balanced (平和) | píng hé | Even energy, sound sleep, regular digestion | Varied, seasonal |
| 2 | Qi Deficient (气虚) | qì xū | Fatigue, soft voice, easy sweating | Yam, red dates, millet |
| 3 | Yang Deficient (阳虚) | yáng xū | Cold extremities, slow digestion | Ginger, lamb, walnuts |
| 4 | Yin Deficient (阴虚) | yīn xū | Dry mouth, hot flashes, night sweats | Pear, lily bulb, black sesame |
| 5 | Phlegm-Damp (痰湿) | tán shī | Heavy body, sticky tongue coat | Pearl barley, white radish |
| 6 | Damp-Heat (湿热) | shī rè | Greasy skin, bitter mouth | Mung bean, lotus seed |
| 7 | Blood Stasis (血瘀) | xuè yū | Dull complexion, dark menses | Hawthorn, peach kernel, vinegar |
| 8 | Qi Stagnation (气郁) | qì yù | Mood swings, sighing, chest tightness | Rose tea, citrus peel |
| 9 | Special (特禀) | tè bǐng | Allergies, hypersensitivity | Honey, lotus root, dates |
Distribution data from a 2022 nationwide CACM survey of 21,948 adults: 32.1% Balanced, 13.4% Qi Deficient, 9.0% Yang Deficient, 8.3% Yin Deficient, 12.6% Phlegm-Damp, 9.9% Damp-Heat, 7.7% Blood Stasis, 6.5% Qi Stagnation, 0.5% Special (Chinese Journal of TCM, 2022).
Type 1: Balanced Constitution (平和体质)
The reference type. Steady energy, normal weight, even mood, regular sleep, healthy appetite.
About one in three Chinese adults tests as balanced. Recommendations focus on maintenance: seasonal eating, regular sleep, moderate exercise.
Type 2: Qi Deficient (气虚体质)
Pale or sallow complexion, soft voice, shortness of breath on light exertion, easy sweating, prone to colds. The classical Su Wen describes this as "insufficient zheng qi (正气)."
The standard yao shan recommendation: Chinese yam (山药), red dates (红枣), millet (小米), and ginseng (人参) used sparingly. A 2024 Shanghai University of TCM study found 8 weeks of yam-based congee improved fatigue scores by 31% in qi-deficient adults (Shanghai TCM Yam Trial, 2024).
Type 3: Yang Deficient (阳虚体质)
Cold hands and feet, aversion to cold, loose stools, low libido. The body's warming function is described as insufficient.
Warming foods: ginger (生姜), cinnamon (桂皮), walnuts (核桃), lamb (羊肉), and small amounts of chili. The Beijing health commission's 2024 spring guide flags yang-deficient patients as the group most likely to benefit from warm soups even in spring.
Type 4: Yin Deficient (阴虚体质)
Dry mouth and throat, hot palms and soles, low-grade afternoon heat, thirst, dry skin, constipation. Body fluids and "cooling substance" are described as insufficient.
Moistening foods: pear (梨), lily bulb (百合), black sesame (黑芝麻), tremella mushroom (银耳), and goji berries. A 2025 Nanjing University of TCM trial showed daily tremella-pear soup improved subjective dryness scores by 42% over 6 weeks in yin-deficient adults.
Type 5: Phlegm-Damp (痰湿体质)
Heavy body sensation, sticky tongue coating, oily skin, easy weight gain, slow digestion. The body is described as accumulating turbid fluids.
Drying and qi-moving foods: pearl barley (薏米), white radish (白萝卜), tangerine peel (陈皮), and lotus leaf (荷叶). A 2024 World Journal of Gastroenterology meta-analysis found pearl barley interventions reduced waist circumference by 2.3cm on average over 12 weeks (WJG, 2024).
Type 6: Damp-Heat (湿热体质)
Greasy facial skin, bitter taste in mouth, yellow tongue coat, acne, body odor, irritable temperament. The body is described as combining damp accumulation with heat.
Cooling and damp-clearing foods: mung bean (绿豆), lotus seed (莲子), bitter melon (苦瓜), and chrysanthemum tea. Limit greasy, spicy, and alcohol.
Type 7: Blood Stasis (血瘀体质)
Dull complexion, dark under-eye circles, dark or clotted menstrual blood, easy bruising, pain in fixed locations. Blood flow is described as obstructed.
Blood-moving foods: hawthorn (山楂), peach kernel (桃仁), saffron (藏红花, very small amounts), and Chinese chives (韭菜). A 2024 Journal of Ethnopharmacology review found hawthorn extract reduced platelet aggregation markers by 18% in blood-stasis-typed adults.
Type 8: Qi Stagnation (气郁体质)
Frequent sighing, chest tightness, mood swings, sleep disturbance, premenstrual breast tenderness. Qi flow is described as blocked, often by held emotion.
Qi-moving foods: rose tea (玫瑰花茶), tangerine peel (陈皮), bitter orange (枳实), and small amounts of buckwheat (荞麦). The classical pairing is rose-and-chrysanthemum tea, served warm.
Type 9: Special Constitution (特禀体质)
Allergies, hay fever, food sensitivities, atopic skin, hereditary conditions. The constitution is described as hypersensitive or unique.
Gentle nourishing foods: honey (蜂蜜, with caution for pollen allergies), lotus root (莲藕), Chinese dates (红枣). The 2024 CACM clinical guideline recommends slow food introduction and constitutional balancing rather than restriction alone.
How Do Practitioners Actually Assess You?
The four examinations (四诊, sì zhěn) date to classical TCM and remain the practitioner workflow today.
1. Looking (望)
The practitioner observes complexion, body shape, posture, eye luster, and especially the tongue. Tongue body color, shape, coating, and moisture are read against a standardized chart of constitutional patterns.
A 2025 Frontiers in Medicine study trained a deep-learning model on 18,000 tongue images and reached 87% agreement with senior TCM practitioners on constitution classification (Frontiers in Medicine, 2025).
2. Listening and Smelling (闻)
Voice volume, breathing pattern, cough quality, and body odor. Soft voice signals qi deficiency. Heavy sour or fishy odor signals damp-heat.
3. Asking (问)
The standardized CACM constitution questionnaire is 60 items long. It covers energy, sleep, digestion, temperature preference, mood, menstrual cycle, sweating, and bowel habits.
A short 9-item screening version exists for primary care use. The Beijing Hospital of Traditional Chinese Medicine validated it against the full 60-item form in 2023 with 84% concordance.
4. Pulse-Taking (切)
Three positions on each wrist — cun (寸), guan (关), chi (尺) — and three depths. Twenty-eight standardized pulse qualities. Floating, deep, slippery, wiry, choppy, and rapid are the most diagnostic.
Pulse-taking has the highest inter-practitioner variability of the four methods. A 2024 Journal of Traditional Chinese Medicine multi-center study found 71% concordance between trained practitioners on pulse classification (J Tradit Chin Med, 2024).
How Constitution Drives Food Therapy
Once typed, the constitutional framework determines food choices, cooking methods, and seasonal adjustments.
Cooking Methods Per Type
- Yang deficient: steam, braise, long-simmer. Avoid raw and cold.
- Yin deficient: steam, poach. Avoid grill and roast (drying).
- Phlegm-damp: stir-fry with low oil, dry-roast. Avoid deep-fry.
- Damp-heat: blanch, steam, light boil. Avoid spicy, alcohol-cooked.
Seasonal Layering
Constitution stays roughly stable but expresses differently by season. A yin-deficient person needs extra moistening foods in autumn. A yang-deficient person needs extra warming foods in winter.
The Beijing Municipal Health Commission's seasonal bulletins explicitly cross-reference constitution and solar term (Beijing Health Commission, 2024).
Frequently Asked Questions
Can my constitution change over time?
Yes. Constitution shifts slowly over months to years in response to diet, stress, sleep, life events, and aging. The CACM 2022 cohort study showed 23% of adults changed primary constitution type over 5 years. Major triggers: pregnancy, prolonged illness, chronic stress, and significant diet change.
Can I be more than one type?
Most people show a primary type plus one or two secondary tendencies. The CACM 2022 survey reported 39% of respondents as "pure" single-type and 61% as mixed. Practitioners typically treat the dominant pattern first, then layer adjustments for secondary tendencies.
How accurate is the 60-question CACM questionnaire?
The CACM questionnaire has been validated across multiple Chinese university hospitals. A 2023 Tianjin University of TCM validation study reported test-retest reliability of 0.84-0.91 across types and inter-rater agreement of 0.79 against practitioner consensus. It is the most widely studied TCM constitution instrument in mainland China.
Are there English-language versions of the assessment?
Yes. Beijing University of Chinese Medicine published an English translation in 2018, with cultural adaptation notes. Multiple research groups have used it in Western populations. The validity in non-Chinese populations is less well-studied — most validation work has been done on Han Chinese cohorts.
Does Western medicine recognize TCM constitution types?
Not as a diagnostic category. Constitution is a traditional Chinese framework. Some Western researchers have studied correlations between constitution types and modern biomarkers — a 2024 PLOS One paper found phlegm-damp constitution correlated with elevated triglycerides and BMI, and yin-deficient constitution correlated with lower morning cortisol. These are research findings, not clinical recommendations.
Related Reading
- 10 TCM Foods for Liver Health: Translated From Chinese Medicine Texts
- Yang Deficiency Constitution: Foods and Lifestyle Practices
- Seasonal Eating in TCM: A Four-Season Food Therapy Framework
- Qingming Seasonal TCM Food Practices
Sources
- China Association of Chinese Medicine. "Classification and Determination of Constitution in TCM," 2009 standard. CACM Constitution Standard, 2009
- Wang Qi et al. Chinese Journal of Traditional Chinese Medicine, "National constitution survey of 21,948 adults," 2022. Chinese Journal of TCM, 2022
- Beijing Municipal Health Commission. "TCM Seasonal Health Bulletin," 2024. Beijing Health Commission, 2024
- Huang Di Nei Jing - Ling Shu (灵枢), classical text, ~200 BCE.
- Shanghai University of TCM. Yam congee fatigue trial, 2024. Shanghai TCM Yam Trial, 2024
- Nanjing University of TCM. Tremella-pear soup yin deficiency trial, 2025. Nanjing TCM, 2025
- World Journal of Gastroenterology. Pearl barley waist circumference meta-analysis, 2024. WJG, 2024
- Journal of Ethnopharmacology. Hawthorn platelet aggregation review, 2024. J Ethnopharmacol, 2024
- Frontiers in Medicine. Deep-learning tongue diagnosis study, 2025. Frontiers in Medicine, 2025
- Journal of Traditional Chinese Medicine. Pulse-taking inter-rater study, 2024. J Tradit Chin Med, 2024
- PLOS One. Constitution biomarker correlation study, 2024. PLOS One, 2024
-- The Yao Shan Guide Team