Age Ayurveda Nighantu

mūtravaha srotas: what the term means and how it is translated

mūtravaha srotas मूत्रवहस्रोतस् 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.

Identification
Transliterationmūtravaha srotas
Devanagariमूत्रवहस्रोतस्
Also writtenmūtravahāni srotāṃsi, mūtravāhīni srotāṃsi (Ca.Vi.5/20), mūtravahasrotaḥ
Category, as gatheredsrotas (body channel) — anatomy/physiology
Grouped here underBody: tissues, wastes and channels
Classical citations3
Citations checked2026-10-08

How it is translated, and whether the translation holds

Each rendering is given with the source that uses it. The assessment is ours.

Urinary tract

WHO International Standard Terminologies on Ayurveda (2022) · ITA-2.5.19 · standards-body comparator

WHO description: 'The pathway for urine. Entities related to this channel are the bladder and groin.', follows Caraka (basti + vaṅkṣaṇa).

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.

Vitiation of channels carrying urine

WHO International Standard Terminologies on Ayurveda (2022) · ITA-5.5.13 mūtravahasrōtōduṣṭiḥ · standards-body comparator (disorder term)

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.

urinary tract

NAMASTE Portal, Standardised Ayurveda Terminologies · SAT-B.486 · national terminology comparator

Definition: 'channels in which urine is formed and excreted which originates from the vasti and vaṁkṣana and is involved in diseases such as prameha, mūtrakṛchra, aśmari etc.' Note NAMASTE adds FORMATION, not just conveyance.

Reproduced unaltered and attributed from the Government of India NAMASTE terminology, 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.

derangement of mUtravahasrotas

NAMASTE National Ayurveda Morbidity Codes · NAMC EJ-1, referenced to Ca.Vi.5/8 · morbidity-code comparator

Reproduced unaltered and attributed from the Government of India NAMASTE terminology, 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.

injury to mUtravahasrotas

NAMASTE National Ayurveda Morbidity Codes · NAMC LH-4.11, referenced to Su.Sa.9/12 · morbidity-code comparator

Reproduced unaltered and attributed from the Government of India NAMASTE terminology, 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.

The two urine carrying Srotas (channels)

Kaviraj Kunja Lal Bhishagratna, Sushruta Samhita (1911) · Śārīrasthāna IX.11–12 · public-domain translation

mutra or urine

carakasamhitaonline.com (CSRTSL), 2020 · Sroto Vimana 5/6-7 commentary · modern translation (in copyright; rendering recorded as comparator only)

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.

Caraka SaṃhitāVimāna Sthāna 5:8 · checked against the source

मूत्रवहानां स्रोतसां बस्तिर्मूलं वङ्क्षणौ च, प्रदुष्टानां तु खल्वेषामिदं विशेषविज्ञानं भवति; तद्यथा- अतिसृष्टमतिबद्धं प्रकुपितमल्पाल्पमभीक्ष्णं वा बहलं सशूलं मूत्रयन्तं दृष्ट्वा मूत्रवहान्यस्य स्रोतांसि प्रदुष्टानीति विद्यात्|

Root = basti (bladder) and the two vaṅkṣaṇa (groins); vitiation signs = excessive, obstructed, agitated, scanty-and-frequent, thick, or painful micturition.

Caraka SaṃhitāVimāna Sthāna 5:20 · checked against the source

मूत्रितोदकभक्ष्यस्त्रीसेवनान्मूत्रनिग्रहात्| मूत्रवाहीनि दुष्यन्ति क्षीणस्याभिक्षतस्य च||२०||

Caraka's causes of vitiation for the urine-carrying channels: taking water or food, or approaching a woman, while under the urge to urinate; suppression of the urge; and the state of one who is emaciated or injured. Vi.5 gives the vitiating causes for thirteen srotas across verses 10 to 22, and mutravaha is the eleventh of the thirteen, at verse 20, between sukravaha at 19 and varcovaha at 21.

Suśruta SaṃhitāŚārīra Sthāna 9:11–12 (Bhishagratna); cited as 9/12 elsewhere · checked against the source

The two urine carrying Srotas (channels) have their roots in the bladder and the penis (urethra). An injury to any of these is marked by constipation or epistaxis in the bladder, retention of urine, and numbness of the genitals.

tr. Kaviraj Kunja Lal Bhishagratna (1911) · source

Suśruta's root = bladder + penis/urethra, against Caraka's bladder + groins. 'constipation or epistaxis in the bladder' is Bhishagratna's own odd English and should be flagged, not relied on.

Not to be confused with

basti
basti is the bladder (the root organ) and also the name of the enema therapy, a standing ambiguity in Ayurvedic English.
vaṅkṣaṇa
Caraka's second root; rendered 'groin' by WHO but read as the ureters/inguinal region by others. It is not the same as Suśruta's śepha.
udakavaha srotas
Modern writers map udakavaha to 'fluid balance' and then to renal function; the texts keep water homeostasis (palate/kloma) separate from urine (bladder/groin).
medovaha srotas
vṛkka (kidney) is the root of MEDOVAHA in Caraka, not of mūtravaha, the most counter-intuitive fact in the whole srotas scheme and a constant source of error.

Renderings that do not hold

  • the renal system / kidneys. Neither text names the kidney as a root of this channel. In Caraka the kidneys (vṛkka) are the root of the FAT channel. Rendering mūtravaha srotas as 'kidneys' silently rewrites the text.
  • 'constipation or epistaxis in the bladder'. Bhishagratna's phrasing is garbled English for obstruction/haemorrhage; quoting it as a clinical sign misrepresents both the Sanskrit and the translator.
  • vaṅkṣaṇa = ureters. A plausible modern reading but not what WHO ('groin') or the Sanskrit says; presenting it as settled is unwarranted.

Open questions

Recorded rather than resolved. Each one is something this entry cannot currently settle.

  • What is vaṅkṣaṇa anatomically, inguinal region, ureters, or both?
  • Why does Caraka place the kidneys under medovaha rather than mūtravaha? Is this a physiological claim about perirenal fat or a different vṛkka?

How to cite this entry

Age Ayurveda Nighantu, mūtravaha srotas, https://nighantu.ageayurveda.com/lexicon/mutravaha-srotas/, 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.