# tridoṣa (त्रिदोष) > Canonical version of this page: https://nighantu.ageayurveda.com/lexicon/tridosha/ An Ayurvedic technical term, rendered into English in 7 different ways. The renderings do not agree, and the difference between them changes what the term is taken to mean. ## Identification | Field | Value | | --- | --- | | Transliteration | tridoṣa | | Devanagari | त्रिदोष | | Also written | tridosa, tri-dosha, tridoṣaḥ, śārīrikadoṣa, tristhūṇā (metaphor) | | Category, as gathered | dosha | | Grouped under | Dosha and its subtypes | | Classical citations | 3 | | Citations checked | 2026-10-08 | ## How it is translated, and whether the translation holds Each rendering is given with the source that uses it. The assessment is ours. ### Three doshas or tridosha WHO International Standard Terminologies on Ayurveda (2022) · ITA-2.1.2; Sanskrit given as tridoṣaḥ, śārīrikadoṣa · standard WHO's description is 'The three regulatory functional factors of the body are: vata, pitta and kapha.' Note WHO offers śārīrikadoṣa as a synonym, preserving the bodily/mental distinction. Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits, and deliberately absent from the downloadable dataset, which is CC BY 4.0. ### Three regulatory functional factors WHO International Standard Terminologies on Ayurveda (2022) · section heading 2.1 · standard The most substantive English phrase WHO commits to. It appears as a section title rather than as a term, which matters: it is not formally the standard rendering of tridoṣa. Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits, and deliberately absent from the downloadable dataset, which is CC BY 4.0. ### the three-supported one (Tristhuna) Sushruta Samhita, tr. Bhishagratna (1907) · Sutrasthana XXI · translation Bhishagratna preserving the text's own architectural metaphor rather than translating the concept. ### three factors determining the state of health Chauhan M et al., Indian J Med Ethics 2024 · PMID 39183608 · paper Contemporary Indian academic gloss. ### vata (kinetic), pitta (metabolic) and kapha (potential) Prasher B, Gibson G, Mukerji M, J Genet 2016 · PMID 27019453, abstract · paper The Ayurgenomics gloss. Maps the triad onto mechanics/thermodynamics vocabulary; a proposal by one research group, widely repeated. ### Vata, Input/Output (homeostasis); Pitta, Turnover (negative entropy production); Kapha, Storage (inheritable structure) Hankey A, Anc Sci Life 2010 · PMID 22557353, abstract · paper A systems-theoretic rendering. Distinct from the Ayurgenomics one and incompatible with it in detail; recorded because the disagreement is the point. ### Functional elements and humoral derangement patterns (TM2) ICD-11 MMS v2026-01, Traditional Medicine Module 2 · block SR10-SR2Z · classification ICD-11 has no code for tridoṣa as a concept; it codes only the derangement patterns of each doṣa separately, and shares the block with Siddha (Vaḷi/Aẕal/Aiyam) and Unani (Dam/Ṣafrā'/Balgham/Sawdā') triads. Reproduced unaltered and attributed from WHO ICD-11, which is what that licence permits, and deliberately absent from the downloadable dataset, which is CC BY 4.0. ## The classical passages ### Sushruta Samhita Sutrasthana 21, checked against the source > There can be no organism without Vayu, Pitta, Kapha and blood, which are necessary to constantly maintain its integrity. tr. Kaviraj Kunja Lal Bhishagratna · https://www.wisdomlib.org/hinduism/book/sushruta-samhita-volume-1-sutrasthana/d/doc122917.html Sushruta's scheme is arguably a tetrad, not a triad: rakta is given equal standing with the three doṣas as constitutive of a living organism. Any record that presents 'tridosha' as the unanimous classical position is overstating it. ### Sushruta Samhita Sutrasthana 21, checked against the source > The vital humours (Vayu, Pitta and Kapha) maintain the integrity of the animated organism by creating, assimilating and diffusing strength in the same way as the moon, the sun, and the winds maintain the integrity of the terrestrial globe. tr. Kaviraj Kunja Lal Bhishagratna · https://www.wisdomlib.org/hinduism/book/sushruta-samhita-volume-1-sutrasthana/d/doc122917.html The triad is framed cosmologically as well as physiologically, which is the aspect the 2025 IJME critique calls conjectural. ### Charaka Samhita Sutrasthana 1:57, checked against the source > वायुः पित्तं कफश्चोक्तः शारीरो दोषसङ्ग्रहः| / vāyuḥ pittaṁ kaphaścōktaḥ śārīrō dōṣasaṅgrahaḥ| tr. none quoted (Sanskrit mula only) · https://www.carakasamhitaonline.com/index.php/Deerghanjiviteeya_Adhyaya Charaka's canonical enumeration. The word used is doṣasaṅgraha ('the collection of doṣas'), not tridoṣa; the compound tridoṣa is later and more common in commentaries and in modern usage than in this verse. ## The concept record for this term A term entry answers what the word means. It does not answer whether the thing the word names is settled, and often it is not. That is what the concept record is for: it sets out the questions on which the sources disagree about this term, with each position attributed, and states what is not established. - [Tridosha: vata, pitta and kapha as the regulatory principles of the body](https://nighantu.ageayurveda.com/concept/tridosha-theory/) ## Not to be confused with - **triguṇa (sattva, rajas, tamas).** A Samkhya psychological/cosmological triad. Two of its members (rajas, tamas) are the mānasa doṣas, which produces a genuine overlap, but sattva is never a doṣa and the triads are not parallel. - **sannipāta / tridoṣaja.** Sannipāta is a disease in which all three doṣas are simultaneously vitiated. 'Tridoshic' used of a disease means sannipātaja; used of a person it means a balanced prakṛti. English usage runs the two together constantly. - **tridoṣic prakṛti (sama-prakṛti).** A constitutional category, not the theory. Saying someone 'is tridosha' is a prakṛti claim. - **Siddha Mukkuṟṟam (Vaḷi, Aẕal, Aiyam) and Unani Akhlāṭ.** ICD-11 TM2 places all three triads in one block with parallel English labels. The labels were chosen to work across three systems, so an ICD-11 English rendering is not evidence about the Ayurvedic term specifically. - **the doṣa-rakta tetrad.** Sushruta Sutrasthana 21 gives blood equal constitutive standing. 'Tridosha' is Charaka's framing generalised backwards over Sushruta. ## Renderings that do not hold - the three humours. Same Galenic problem as for doṣa, compounded: the Greek scheme has four, and the pairing readers reach for (blood/phlegm/yellow bile/black bile) is not the Ayurvedic set. - three body types. Confuses tridoṣa with prakṛti classification, and silently drops the two-, three- and seven-fold combination types the texts actually enumerate. - three energies / three bio-energies. No classical or standardised warrant; 'energy' is not a category in the texts, which speak of guṇas and karmas. - tridosha theory as a unanimous classical doctrine. Not strictly a mistranslation but a framing error: Sushruta Sutrasthana 21 makes it a tetrad with blood, and the compound tridoṣa does not appear in Charaka Sutrasthana 1/57. ## Open questions Recorded rather than resolved. - When does the compound tridoṣa first appear in the Brihat Trayi as against the commentaries? Not established here. - Whether WHO ISTA anywhere defines the relation between tridoṣa and rakta, given Sushruta's tetrad. ## Citation Age Ayurveda Nighantu, "tridoṣa", https://nighantu.ageayurveda.com/lexicon/tridosha/, CC BY 4.0. Whole lexicon: https://nighantu.ageayurveda.com/lexicon.json and https://nighantu.ageayurveda.com/lexicon.csv. Educational reference only. A term entry explains what a word means and how it has been translated. Nothing here is advice.