TCM Body Constitution — Nine Types & Self-Assessment

Traditional Chinese medicine recognizes nine basic constitution types. Understanding yours helps guide diet and daily wellness choices.

Body Constitution Theory

The balanced constitution is the most ideal state in TCM body constitution classification, characterized by abundant energy, a ruddy complexion, normal appetite and sleep. Individuals with this constitution possess strong adaptability and rarely fall ill. Daily maintenance focuses on keeping a regular routine and balanced diet, with moderate intake of whole grains, fresh vegetables, and fruits, complemented by gentle exercises like walking or Tai Chi. No special intervention is needed, making it a model of health preservation.

Learn more

Qi Deficiency Constitution

The qi deficiency constitution is characterized by insufficient original qi. Its basic features include a thin or slightly plump physique, physical fatigue, pale complexion, a low and timid voice, frequent spontaneous sweating worsened by exertion, palpitations, poor appetite, a pale tongue with white coating, and a weak pulse. When illness occurs, these symptoms intensify and may be accompanied by further manifestations depending on which organ is predominantly affected: shortness of breath and weak cough (lung qi deficiency); poor appetite, bloating, loose stools, or organ prolapse (spleen qi deficiency, sinking of middle qi); severe palpitations (heart qi deficiency); or sore and weak lower back and knees, frequent urination, spermatorrhea, premature ejaculation, or thin leukorrhea (kidney qi deficiency). This constitution represents a state of diminished physiological function and lowered disease resistance.

Yang Deficiency Constitution

The yang deficiency constitution is characterized by insufficient yang qi with predominant internal cold. Manifestations include fatigue, aversion to cold, cold extremities, pale lips, shortness of breath with reluctance to speak, somnolence, and weakness. Males may experience spermatorrhea, while females often have thin leukorrhea. Additional signs include susceptibility to diarrhea, frequent urination, and decreased libido. Individuals habitually fear cold, prefer warmth, sweat easily, favor hot drinks, and display listlessness with excessive sleep — a typical deficiency-cold constitution.

Yin Deficiency Constitution

The core of yin deficiency constitution lies in the depletion of yin fluid: on one hand, the functions of moistening, nourishing, and calming are diminished; on the other, yin deficiency fails to restrain yang, leading to relative hyperactivity of yang qi and resulting in a state of internal deficiency-heat and yin deficiency with yang hyperactivity. Common causes include external yang pathogens consuming yin fluid, excessive mental strain insidiously depleting yin blood, and prolonged illness leading to essence-blood insufficiency and fluid exhaustion. This typifies the pathology of "deficiency with heat."

Phlegm-Dampness Constitution

The phlegm-dampness constitution (delayed-cold type) arises from abnormal fluid retention. Here, “phlegm” is a pathological product, while “dampness” is divided into external (invasion by environmental humidity) and internal (fluid accumulation due to impaired spleen-stomach transportation and improper diet). This constitution often involves spleen-stomach dysfunction and endocrine disorders, representing a metabolic impairment with water stagnation.

Damp-Heat Constitution

The damp-heat constitution is characterized by internal accumulation of damp-heat. Common manifestations include a greasy, oily facial complexion with a tendency toward acne and boils; a bitter, dry mouth; a heavy, fatigued body; sticky, difficult, or dry bowel movements; and scanty, dark urine. Males are prone to scrotal dampness, while females often experience increased vaginal discharge. The tongue tends to be reddish with a yellow, slimy coating, and the pulse is slippery and rapid. Psychologically, irritability and restlessness are common. Individuals are susceptible to conditions such as boils, jaundice, and heat strangury, and have difficulty adapting to humid, hot environments, especially during late summer and early autumn. The physique is typically medium or slightly thin.

Blood Stasis Constitution

The typical blood stasis constitution often features a lean physique. Its core pathogenesis lies in the principle that “when static blood is not dispelled, new blood cannot be generated.” Impaired microcirculation directly compromises tissue nutrition — even with sufficient food intake, nutrients fail to reach their intended destinations. Over time, this downstream obstruction also diminishes upstream appetite. Dry skin with pruritus is a common external manifestation; TCM regards this as a sign of “wind,” following the therapeutic principle “to treat wind, first treat the blood; when the blood moves, wind naturally extinguishes.” The root lies in unblocking the blood vessels.

Qi Stagnation Constitution

Qi is the fundamental driving force of human life, closely linked to the functions of the kidney, spleen, stomach, and lung. When qi fails to reach outward and accumulates internally, “qi stagnation” (qi depression) is formed, often caused by melancholy, frustration, and emotional distress. Prolonged qi stagnation can impair blood circulation and severely affect health. The health preservation principle for a qi stagnation constitution focuses on regulating and unblocking the qi dynamic, emphasizing qi regulation, constraint resolution, and emotional harmony.

Special Constitution (also rendered as Allergic Constitution or Constitution of Specific Endowment)

The special constitution is a biased type in the nine-category TCM constitution classification, referring to a state characterized by physiological defects, allergic reactions, and hereditary diseases caused by congenital insufficiency and/or acquired environmental factors. It mainly includes three subtypes: allergic constitution (sensitivity to drugs, foods, pollen, etc., prone to urticaria, asthma, eczema); hereditary disease constitution (family history of genetic disorders or congenital defects); and fetally transmitted constitution (maternal diseases or adverse gestational factors causing postnatal abnormalities). General adaptability is poor, and the psychological tendency is often introverted and sensitive.