majjā-dhātu: what the term means and how it is translated
majjā-dhātu मज्जाधातु is an Ayurvedic technical term. It is rendered into English in 6 different ways across 7 sources, which is the reason this page exists: the renderings do not agree, and the difference between them changes what the term is taken to mean.
| Transliteration | majjā-dhātu |
|---|---|
| Devanagari | मज्जाधातु |
| Also written | majja, majjadhatu, majja dhatu, asthisara (WHO synonym), majjan |
| Category, as gathered | dhatu |
| Grouped here under | Body: tissues, wastes and channels |
| Classical citations | 7 |
| 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.
Bone marrow
WHO International Standard Terminologies on Ayurveda · ITA-2.2.16 (Sanskrit: majjā-dhātuḥ, asthisāram) · standard
WHO describes it as 'the soft organic material that fills bone cavities' with the function of 'replenishment of body tissues', and gives that function its own headword pūraṇam (ITA-2.2.17). Excludes nervous tissue by implication.
Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits. It is deliberately absent from the downloadable dataset, which is offered under CC BY 4.0 and invites the modification a NoDerivs licence forbids.
Replenishment
WHO International Standard Terminologies on Ayurveda · ITA-2.2.17 (pūraṇam), majjā's function as a separate headword · standard
'The essential function of bone marrow is to fill or complete a cavity or container; replenish the body with structural components.' The filling sense and the nourishing sense are combined in one entry.
Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits. It is deliberately absent from the downloadable dataset, which is offered under CC BY 4.0 and invites the modification a NoDerivs licence forbids.
marrow
Charaka Samhita, tr. Avinash Chandra Kaviratna (1896-1913) · Chikitsasthana XV; Vimanasthana VIII; Sutrasthana XXVIII · translation
Uniform. Kaviratna elsewhere notes 'The marrow that is within the bones', distinguishing it from marrow in general.
marrow
Sushruta Samhita, tr. Kunja Lal Bhishagratna (1907-1916) · Sutrasthana XIV and XV · translation
Same.
marrow (bone and spinal)
Wikipedia, Dhātu (ayurveda) · encyclopaedia
Recorded as a fact about a widely-read source, and notable because it explicitly extends majjā to the spinal cord, which WHO's definition does not.
bone marrow and nervous tissue
Common modern Ayurvedic teaching · textbook · our paraphrase of the source, not its words
A widespread teaching extension. No classical passage retrieved here supports it, and it conflicts with WHO's cavity-filling definition.
bone-bone marrow (as asthimajjadhatu)
Modern Ayurvedic journal usage · PMID 42161239, 'asthimajjadhatu (bone-bone marrow)' · journal
Clinically, asthi and majjā are frequently treated as a compound unit, which is itself a fact about how the terms are used.
The classical passages
Each citation gives its address so a reader can check it in a printed edition, our account of what the passage establishes, and the result of reading it against its source.
Sushruta SamhitaSutrasthana 15:corresponds to mula verse 5 · checked against the source
The marrow contributes towards the formation and increase of semen, and fills in the internal cavities of the bones, and forms the chief source of strength, amorous feelings and hilarity.
Majjā's functions: production of shukra, filling the bone cavities (pūraṇa), and being the source of strength, sexual feeling and cheerfulness. The affective functions are not properties of haematopoietic marrow and are quietly dropped by the 'bone marrow' rendering.
Sushruta SamhitaSutrasthana 15:kshaya prose section · checked against the source
the loss or waste of marrow is characterised by the formation of a lesser quantity of semen, aching pain in the bones and breaking pain in the bone-joints which have become marrowless.
Majjā-kṣaya presenting as reduced semen and bone/joint pain. Not cytopenia. A reader expecting the haematological referent will find nothing here about blood counts.
Sushruta SamhitaSutrasthana 15:vriddhi prose section · checked against the source
An excessive formation of marrow gives rise to a heaviness of the eyes and to the members of the body.
Majjā-vṛddhi as heaviness of the eyes and limbs. Again no haematological content.
Charaka SamhitaChikitsasthana 15:18 in Kaviratna's marginal numbering · checked against the source
that of marrow is the oily-substance in the body ; that of the skin is the secretions flowing from the eyes.
The mala of majjā is the body's oily secretion. Bhishagratna's parallel footnote to Su.Su.14 attributes the eye-corner deposits and skin oils to majjā, so the two translators divide these products differently.
Charaka SamhitaVimanasthana 8:121 in Kaviratna's marginal numbering; sara section cited as Vi 8/102 ff by carakasamhitaonline · checked against the source
They who have the marrow for the predominating element in their constitution have limbs that are soft, as also great strength, oily complexion and voice, and joints that are thick, long, and round. They become long-lived, endued with great strength, knowledge of the scriptures, science, and offspring. They become entitled to the respect of all.
Majjā-sāra, recognised by soft limbs, oily voice and complexion, and thick round joints, and associated with learning and longevity. WHO ISTA's own ITA-2.8.1.7 description tracks this closely.
Sushruta SamhitaSutrasthana 14:footnote to the prose section on successive transformation · checked against the source
The marrow, in its nascent state, enters into the organic principle of that name ; and there matured under the native heat of that principle, it is resolved into three factors, viz, its excreted portion contributes towards the formation of gelatinous matter deposited in the corners of the eyes, and the oily secretions of the skin, its condensed portion is assimilated into the organic principle of marrow, and its subtile portion is metamorphosed into semen.
The three-fraction account of majjā's metabolism. This is Bhishagratna's own explanatory footnote, not the mula, and is recorded as such: it is quotable because he wrote it in 1907, but it is the translator speaking, not Sushruta.
Sushruta Samhita (Sanskrit mula)Sutrasthana 14:10 · checked against the source
ततो मज्जा मज्ज्ञः शुक्रं तु जायते (within रसाद्रक्तं ततो मांसं मांसान्मेदः प्रजायते । मेदसोऽस्थि ततो मज्जा मज्ज्ञः शुक्रं तु जायते ॥१०॥)
Majjā from asthi, and shukra from majjā, in verified Sanskrit with verse number.
Not to be confused with
- asthi
- The preceding dhātu, which contains majjā. Clinically they are so often paired ('asthi-majjakshaya', 'asthimajjadhatu') that the compound risks becoming the unit and the distinction being lost.
- asthi-sāra
- WHO ISTA lists asthisāram as a Sanskrit synonym for majjā-dhātu (ITA-2.2.16) while separately defining asthi-sāraḥ as the bone-predominant constitution (ITA-2.8.1.6). Same string, two referents, one standard.
- mastulunga
- Brain matter. Modern teaching often folds brain and spinal cord into majjā; no passage retrieved here does so, and WHO's definition (soft material filling bone cavities) excludes it. The extension needs its own evidence.
- medas
- Both are unctuous and both are often called 'fat-like'. Medas is two steps earlier in the chain and its excess obstructs channels; majjā fills cavities.
- vasā
- Another unctuous substance with a distinct classification (WHO: upadhātu of māṃsa). The three unctuous substances medas, vasā and majjā are routinely blurred in English.
- śukra
- The next dhātu, produced from majjā. Sushruta ties majjā-kṣaya directly to reduced semen, so depletion of the one presents as depletion of the other.
Renderings that do not hold
- bone marrow, read as the haematopoietic organ. Nothing in the retrieved classical material connects majjā to the formation of blood. Rakta is formed from rasa in spleen and liver per Sushruta Sutrasthana 14, several steps earlier in the chain. The modern reader who sees 'bone marrow' will import haematopoiesis, which the tradition assigns elsewhere.
- nervous tissue / brain and spinal cord. A common teaching extension with no support in any passage retrieved here, and in conflict with WHO's cavity-filling definition. It may be defensible from other sources; it is not established by these.
- marrow, as a purely structural filler. The opposite error. Sushruta makes majjā 'the chief source of strength, amorous feelings and hilarity' - affective and constitutional functions that a filler reading discards.
- majjā-kṣaya = aplastic anaemia or marrow failure. Occasionally proposed. The classical sign list is reduced semen plus bone and joint pain, with no cytopenic feature at all.
Open questions
Recorded rather than resolved. Each one is something this entry cannot currently settle.
- Whether majjā includes nervous tissue is the central unresolved question for this term. No retrieved classical passage supports the extension; modern teaching asserts it routinely. The relevant evidence would be in Sushruta Sharirasthana and in the Laghu Trayi, neither searched here.
- The WHO asthi-sāra collision (marrow vs bone-predominant constitution) is unexplained.
- Kaviratna and Bhishagratna assign the eye-corner and skin secretions differently between majjā and tvak. Which reflects the mula could not be determined without Sanskrit.
- PubMed 'majja dhatu' returns zero records. There is no peer-reviewed operational definition of majjā, and no study measures anything and calls it majjā. This is the emptiest modern record in the set.
How to cite this entry
Age Ayurveda Nighantu, majjā-dhātu
, https://nighantu.ageayurveda.com/lexicon/majja-dhatu/, CC BY 4.0.
The whole lexicon is downloadable from the index.
Machine-readable source: Markdown.
Data exported 2026-10-08.
Educational reference only. A term entry explains what a word means and how it has been translated. Nothing here is advice, and nothing here describes how any condition should be treated.