The Nine TCM Constitutions: A Guide to Types and Results

The nine constitutions are a traditional Chinese medicine (TCM) classification of patterns in a person's physical and emotional characteristics. They include a balanced type and eight other tendencies. They are not nine diseases, and a result is not necessarily a lifelong identity.

If you have just completed a questionnaire, save the result and date before trying to settle on a label. This guide explains the names, suggests a reading route, and provides a checklist you can return to when reviewing a result.

What does constitution describe, compared with how you feel today?

Gaoling Township Health Center's introduction (in Chinese) describes constitution as relatively stable physical and psychological characteristics shaped by both inherited and later influences. Two useful ideas are individual tendencies and a period of time, rather than a single sensation today.

For example, a longstanding sensitivity to cold provides different information from feeling cold while sitting directly under an air-conditioning vent. Relatively stable does not mean unchangeable. The guide below explains vocabulary; it is not a list of symptoms to count or score yourself against.

A guide to the nine names

An introduction published by China's State Administration for Market Regulation (in Chinese) lists the balanced type and eight other tendencies. Describing a constitution as unbalanced is part of this traditional classification, not a judgment of someone's worth or a medical health score. Choose a topic by the question you want answered:

• Balanced: relative overall harmony. What do a constitution result and a health assessment each tell you?
• Qi deficiency: a traditional description of insufficient qi, often discussed in relation to energy. How can you describe tiredness without assuming that all fatigue has one cause?
• Yang deficiency: a traditional description often emphasizing cold sensitivity. How can you distinguish a longstanding feeling from a recent change?
• Yin deficiency: a traditional description involving dryness and feelings of heat. How can you describe these experiences separately?
• Phlegm-dampness: a traditional description often involving heaviness or stickiness. How do body shape, constitution vocabulary, and medical measurements differ?
• Damp-heat: a traditional description combining dampness and heat. Why can't a skin change alone determine your constitution?
• Blood stasis: a traditional explanation concerning the movement of blood. How does a record of bruising differ from a constitution label?
• Qi stagnation: a traditional description concerning qi and often emotional experiences. How can you explain distress and ask for support?
• Special constitution: a category concerning distinctive inherited characteristics, often introduced through allergy-related experiences. How should you keep suspected reactions, test results, and confirmed conclusions separate?

The individual guides are available through the constitution reading guide. You do not have to read all nine in order. Start with the question that matters to you now.

Which article should I read first?

• New to these terms? Finish this overview to understand the difference between a classification, an experience, and a diagnosis.
• Already have a result? Use the result checklist below, then choose the relevant guide.
• Have one particular concern? Read the guide that discusses it and use its examples. You do not need to identify a constitution first.
• Looking for dietary or self-care advice? First name what you want to improve. These nine names alone cannot determine a personal diet or medication plan.

Keep three kinds of information separate

Constitution classification concerns personal tendencies within traditional theory. Current experiences are things you can describe. Medical diagnosis requires an assessment appropriate to the particular problem. All three may come up in a consultation, but they are not interchangeable.

For example, “I felt exhausted after working late this week” describes an experience. “The questionnaire suggested qi deficiency” reports a tool's output. “What is causing the fatigue?” remains a separate question. Combining the first two statements does not establish a cause.

For more on constitution and TCM patterns, see holistic thinking, patterns, and constitution (Chinese edition).

What if several tendencies appear, or two results differ?

Check whether you used the same questionnaire, version, and instructions. Scores from different tools are not directly comparable. Repeatedly changing answers to get a more desirable result makes comparison less useful.

Save the original output and its context rather than forcing it into one category. You might write: “I completed the first questionnaire on a work trip and the second while on leave. I answered as best I could, but did not check the period the questions asked me to recall.” This explains a limitation of the comparison; it does not prove that your constitution changed.

If the output does not fit your longer-term experience, ask the tool's provider to explain the original questions and result. If you need help with persistent discomfort, describe that discomfort directly. The existence of a national standard does not establish that every online questionnaire uses it or has been validated.

A simple way to connect the names

Focus first on what similar terms emphasize. Qi deficiency and yang deficiency both use the word “deficiency,” but introductory descriptions tend to emphasize energy and activity for the former, and warmth and cold for the latter. Yin deficiency uses the same word while often describing dryness and heat. “Deficiency” here is not a nutritional test result and does not automatically mean you need a supplement.

Phlegm-dampness and damp-heat share “dampness.” The former often emphasizes heaviness or stickiness; the latter also emphasizes heat. Blood stasis uses traditional language about blood movement; qi stagnation concerns traditional qi concepts and emotional descriptions; special constitution starts from individual inherited differences. These are different descriptive angles, not steps on a ladder from mild to severe. This is an editorial reading aid based on the sources above, not a substitute for a full assessment.

To explore a particular distinction, read qi deficiency versus yang deficiency or phlegm-dampness versus damp-heat. Understanding one distinction may be more useful than memorizing nine lists.

Turn “improve my constitution” into a practical goal

An aim that broad gives little guidance about today. Try “keep meetings from taking over lunch this week,” “leave some time without work before bed,” or “find out why my mouth keeps feeling dry.” The first two are scheduling tasks. The third involves a specific health concern and needs a different approach.

You can also learn the basics of eating and activity before settling on a type. WHO's healthy diet guidance emphasizes variety and overall balance. Its physical activity guidance includes movement during travel and household tasks. These general principles do not demonstrate that a menu or exercise routine changes a constitution to balanced. Fit everyday plans around any existing medical advice.

Fictional example: Zhou receives several tendencies and plans to change his diet, buy herbal tea, and start an intense exercise challenge at once. On reflection, his immediate problem is regularly missing lunch at work. He first arranges a lunch break with colleagues. The example shows how to make a task manageable; it does not claim that this changes constitution.

How can I assess constitution-based self-care content?

Ask three questions: What counts as improvement? What evidence supports it? What conditions or limitations apply to me? Feeling more comfortable after a drink, a change in a medical measurement, and a different questionnaire score are different outcomes. Evidence for one cannot simply be borrowed for another. A claim that something suits everyone with yang deficiency also needs information about ingredients, intended use, and who should not use it.

A useful introductory article explains how its conclusions were reached and leaves room for uncertainty. If a common feeling leads straight to a long-term purchase plan, the missing explanation matters more than the product's name. For a particular product, use the questions to ask before buying supplements.

A checklist to save with your result

Example: your question might be “Why has afternoon work become difficult?” rather than “How do I get my qi deficiency score to zero?” Write “unknown” where information is missing.

Constitution result checklist — for understanding information, not diagnosis
Questionnaire name, provider, and version:
Date completed and period the questions asked about:
Original result and scores, in their original wording:
Relevant circumstances, such as travel or working late:
One specific issue I want help with:
When it began and how it affects everyday life:
What I need the provider to explain:
Professional advice I have already received:

What should I do next?

To understand the names, save the nine-type guide. To understand a questionnaire, use the checklist. To discuss discomfort, describe when it began and how it affects you. These do not all have to happen in one sitting. For evidence and safety considerations concerning traditional approaches, see NCCIH's introduction to TCM.