# śukra-dhātu (शुक्रधातु) > Canonical version of this page: https://nighantu.ageayurveda.com/lexicon/shukra-dhatu/ An Ayurvedic technical term, rendered into English in 4 different ways across 6 sources. The renderings do not agree, and the difference between them changes what the term is taken to mean. ## Identification | Field | Value | | --- | --- | | Transliteration | śukra-dhātu | | Devanagari | शुक्रधातु | | Also written | shukra, sukra, śukra, shukradhatu, retas (related, not synonymous), bija | | Category, as gathered | dhatu | | Grouped under | Body: tissues, wastes and channels | | Classical citations | 8 | | 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. ### Reproductive fluids; semen WHO International Standard Terminologies on Ayurveda · ITA-2.2.18 (Sanskrit: śukradhātuḥ) · standard A double headword, and WHO's description is unusually explicit about the tension: 'generally equated with reproductive cells (semen, ovum)' and 'It occurs in two forms: the first which pervades the entire body and the second which fertilizes the ovum.' WHO thus records both the whole-body sense and the ejaculate sense. 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. ### Semen WHO International Standard Terminologies on Ayurveda · ITA-2.2.19 (retas) - a SEPARATE headword · standard WHO gives retas its own entry, 'Part of seminal tissue ... generally refers to the ejaculate and carries the male seed'. So in WHO's scheme 'semen' proper is retas, and śukra is wider. Anyone translating śukra as 'semen' is using WHO's word for a different term. 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. ### vital seed Charaka Samhita, tr. Avinash Chandra Kaviratna (1896-1913) · Chikitsasthana XV; Vimanasthana VIII; Sutrasthana XXVIII · translation Kaviratna's uniform rendering, and a better one than it looks: 'seed' keeps the generative sense without committing to the ejaculate, and 'vital' marks it as a bodily principle. ### semen Sushruta Samhita, tr. Kunja Lal Bhishagratna (1907-1916) · Sutrasthana XIV and XV · translation Bhishagratna commits to the ejaculate reading throughout, though the passages he is translating speak of shukra existing latently in children and of its conversion from rasa over a month. ### semen Wikipedia, Dhātu (ayurveda) · encyclopaedia Recorded as a fact about a widely-read source. ### reproductive tissue Modern Ayurvedic teaching and journal usage · textbook · our paraphrase of the source, not its words The hedged modern form, adopted to accommodate the fact that women are also said to have shukra. ## The classical passages ### Sushruta Samhita Sutrasthana 15:corresponds to mula verse 5, checked against the source > The semen gives rise to valour and courageousness, makes a man amorously disposed towards the female sex, increases his strength and amativeness, is the sole impregnating principle in the male organism, and is possessed of the virtue of being quickly emitted. tr. Kunja Lal Bhishagratna (1907-1916) · https://archive.org/stream/b24758619_0001/b24758619_0001_djvu.txt Shukra's functions run from courage and strength through to impregnation. The first two are constitutional, not reproductive, and are the reason the term cannot simply be read as 'semen'. ### Sushruta Samhita (Sanskrit mula) Sutrasthana 14:14, checked against the source > स खलु त्रीणि त्रीणि कलासहस्राणि पञ्चदश च कला एकैकस्मिन् धाताववतिष्ठते; एवं मासेन रसः शुक्रं स्त्रीणां चार्तवं भवति ॥१४॥ Sanskrit mūla · https://www.siva.sh/sushruta-samhita/sutra-sthana/14/14 Crucially, that rasa becomes śukra in men AND ārtava in women over one month (स्त्रीणां चार्तवं भवति). The mula parallels shukra with menstrual fluid rather than positing a female shukra here. Verified Sanskrit with verse number. ### Sushruta Samhita Sutrasthana 14:corresponds to mula verse 14, checked against the source > The Rasa is successively transformed into each of the six remaining fundamental principles of the body, and continues in the shape of each for the period of three thousand and fifteen kalas [five days according to our modern computation]. Thus the Rasa is converted into semen, or into the menstrual blood (ovum) in women, in the course of a month. tr. Kunja Lal Bhishagratna (1907-1916) · https://archive.org/stream/b24758619_0001/b24758619_0001_djvu.txt The quotable English of the same verse, with Bhishagratna's bracketed gloss equating menstrual blood with the ovum - a nineteenth-century identification that should be flagged, not adopted. ### Sushruta Samhita Sutrasthana 14:prose section, checked against the source > As the perfume in a flower-bud lies latent in its early stage of growth but becomes patent only with the growth of its seed organs, so semen or catamenial blood lies in a potential state in a male or a female child, and appears with the growth of beards and mustaches, or with the enlargement of the breasts, uterus and vaginal canal and the appearance of pubic hair. tr. Kunja Lal Bhishagratna (1907-1916) · https://archive.org/stream/b24758619_0001/b24758619_0001_djvu.txt That shukra is held to be present potentially from childhood and to become manifest at puberty. Answers the text's own objection 'how is it that semen is not found in an infant?' and is decisive against reading shukra as simply the ejaculate. ### Sushruta Samhita Sutrasthana 15:kshaya and vriddhi prose sections, checked against the source > The loss or waste of semen is marked by pain in the penis and the testes, and by incapacity for sexual intercourse. In such cases the emission of semen but rarely happens, and is then perceptibly deficient in its quantity, the emitted matter consisting of a small quantity of semen marked with shreds of blood. ... An excess of semen in the body is marked by an excessive flow of that fluid and gives rise to the formation of gravels (concretions) in the bladder which are known as Shukrashmari. tr. Kunja Lal Bhishagratna (1907-1916) · https://archive.org/stream/b24758619_0001/b24758619_0001_djvu.txt The clinical presentations of śukra-kṣaya and śukra-vṛddhi, including the named entity shukrashmari (seminal calculus). ### Charaka Samhita Chikitsasthana 15:15 in Kaviratna's marginal numbering, checked against the source > from marrow is vital seed : from the vital seed arises the foetus. tr. Avinash Chandra Kaviratna (1896-1913) · https://archive.org/stream/BIUSante_47357/BIUSante_47357_djvu.txt Shukra as terminal member of the chain and source of the foetus. Charaka's chain runs one step further than Sushruta's, to garbha. ### Charaka Samhita Vimanasthana 8:122 in Kaviratna's marginal numbering; sara section cited as Vi 8/102 ff by carakasamhitaonline, checked against the source > They who have the vital seed for the predominating element in their constitution become possessed of an amiable disposition, and amiable (or agreeable) looks. Their eyes seem to be full of milk. tr. Avinash Chandra Kaviratna (1896-1913) · https://archive.org/stream/BIUSante_47357/BIUSante_47357_djvu.txt Śukra-sāra as a constitutional type recognised by disposition and appearance, notably the 'milky' eyes that WHO ISTA also records at ITA-2.8.1.8 ('milky-looking eyes'). ### Sushruta Samhita Sutrasthana 14:translator's footnote to the prose section, checked against the source > Semen, like gold a thousand times purified, casts off no dregs. Hence certain authorities hold albumen (protoplasmic matter) to be the eighth or the culminating principle of the body. tr. Kunja Lal Bhishagratna (1907-1916), translator's footnote · https://archive.org/stream/b24758619_0001/b24758619_0001_djvu.txt That shukra alone among the dhātus is held to produce no waste fraction, and that its subtle residue is taken by some authorities to be ojas as an eighth principle. Recorded as the translator's footnote, not as mula. ## Not to be confused with - **retas.** WHO ISTA gives retas its own headword, 'Semen' (ITA-2.2.19), describing it as 'Part of seminal tissue' that 'generally refers to the ejaculate'. So in the standard's own scheme retas is the ejaculate and śukra is the wider dhātu. Translating śukra as 'semen' collides directly with this. - **bīja / puṃbīja / strībīja.** WHO gives 'Seed' (ITA-2.2.20), 'Male seed' (ITA-2.2.21) and 'Female seed' (ITA-2.2.22) as separate headwords. The generative factors are terminologically distinct from the dhātu. - **ārtava.** Sushruta 14.14 parallels shukra in men with ārtava in women, and WHO classes ārtava as an upadhātu of rasa (ITA-2.3.3), not as a female shukra. Modern teaching often posits a female śukra; the mula verse retrieved here does not. - **ojas.** Bhishagratna's footnote derives the eighth principle from shukra's thin fraction. Ojas is the sāra of all seven dhātus per Sushruta Sutrasthana 15; whether it is also specifically shukra's product is the open question. - **vṛṣatā / vājīkaraṇa.** Virility (WHO ITA-2.2.23) and the therapeutic class that promotes it. Properties and treatments, not the dhātu. - **śukrāśmarī.** A named disease of śukra excess (seminal calculus), not the dhātu. ## Renderings that do not hold - semen. WHO ISTA assigns 'Semen' to retas, a different headword. Śukra is said to exist latently in children of both sexes, to be formed from rasa over a month, to produce courage and strength, and to pervade the whole body in one of its two forms. None of that is semen. - sperm. Narrower still. Sperm is a cell type; śukra in the sources is a bodily principle with constitutional and affective functions. The equation is nonetheless how śukra disorders are measured in practice (PMID 32741654, 39157286). - reproductive fluids. WHO's own first headword, and better, but it still fixes on fluidity and reproduction and drops the pervasive whole-body form that WHO's description mentions in the same entry. - 'catamenial blood (ovum)'. Bhishagratna's bracketed gloss equating menstrual blood with the ovum. A nineteenth-century error about reproductive biology embedded inside a quotable translation. Quote the sentence if needed; never adopt the gloss. ## Open questions Recorded rather than resolved. - Whether women have śukra, or whether the female counterpart is ārtava, is stated differently by the sources retrieved here: Su.Su.14.14 parallels shukra with ārtava, WHO calls śukra 'reproductive fluids ... (semen, ovum)', and modern teaching posits a female śukra. Unresolved. - The relationship between śukra and ojas: Bhishagratna's footnote derives the eighth principle from shukra's thin fraction, Sushruta's chapter XV makes ojas the essence of all seven. Not reconciled anywhere retrieved. - No study operationalises śukra as anything other than semen parameters, and no study asks whether the classical śukra-kṣaya presentation (penile and testicular pain, blood-flecked ejaculate) identifies the same patients as oligospermia. - What the 'first form which pervades the entire body' in WHO's description corresponds to, and where WHO drew it from, could not be determined; WHO gives no source references per entry. ## Citation Age Ayurveda Nighantu, "śukra-dhātu", https://nighantu.ageayurveda.com/lexicon/shukra-dhatu/, 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.