Overview

Unani and Ayurveda are two traditional medical systems that share a humoral logic but were built by different civilizations. Unani (Yunani tibb, literally 'Greek medicine') descends from the four humors of Hippocrates and Galen and was elaborated by Arab and Persian physicians; Ayurveda is the Indian system built on three doshas and the five elements. Both type the individual and treat imbalance rather than an isolated disease.

The two frameworks rhyme without matching. Unani's four akhlat — dam (blood), balgham (phlegm), safra (yellow bile), sauda (black bile) — and its four temperaments (mizaj) sit beside Ayurveda's three doshas (vata, pitta, kapha) and its constitution (prakriti). Their diagnostic methods converge too: both read the wrist pulse and inspect urine and stool.

This page compares the two on origin, framework, body model, diagnosis, typing, treatment and evidence — and traces the historical exchange that brought Unani into India alongside an already-ancient Ayurveda.

Side by Side

Attribute Unani Ayurveda
Origin and lineage Greek roots in Hippocrates and Galen; elaborated by Arab and Persian physicians (al-Razi, Ibn Sina) from the 9th-11th centuries. Indian roots in the Charaka and Sushruta Samhitas, c. 1st millennium BCE to early CE; an unbroken Sanskrit medical tradition.
Name and meaning Yunani means 'Greek' (from Ionia) — the Arabic name for the Greek medical inheritance. Ayurveda means 'knowledge of life' (ayus + veda) in Sanskrit.
Core framework Four akhlat (humors) and the doctrine of mizaj (temperament). Three doshas and the doctrine of prakriti (birth constitution).
Fundamental units Dam (blood), balgham (phlegm), safra (yellow bile), sauda (black bile). Vata (air-ether), pitta (fire-water), kapha (water-earth).
Underlying elements Four elements: fire, air, water, earth (arkan). Five elements: ether, air, fire, water, earth (pancha mahabhuta).
Constitution / typing Mizaj: sanguine, phlegmatic, choleric, melancholic — a dominant temperament per person. Prakriti: a fixed mix of the three doshas set at conception, one or two usually dominant.
Diagnostic methods Nabz (pulse), baul (urine), baraz (stool), plus muayina (inspection) and istifsaar (history). Nadi pariksha (pulse), tongue, eyes, stool and urine, plus the eightfold ashtavidha pariksha.
Disease causation Imbalance or corruption of the humors and a deranged mizaj in an organ or the whole body. Aggravation of one or more doshas, weak agni (digestive fire), and accumulated ama (toxins).
Treatment hierarchy Ilaj bil ghiza (diet), ilaj bil tadbeer (regimen), ilaj bil dawa (drugs), then ilaj bil yad (surgery). Diet and lifestyle first, then shamana (palliation), shodhana (purification via panchakarma), and rasayana (rejuvenation).
Materia medica Single and compound herbo-mineral drugs, each classed by its own temperament (hot/cold, wet/dry) and degree. Herbs, minerals and formulas classed by rasa (taste), virya (potency) and vipaka (post-digestive effect).
Foundational texts Ibn Sina's Canon of Medicine (al-Qanun fi al-Tibb, c. 1025 CE); the Greek Hippocratic and Galenic corpus. Charaka Samhita, Sushruta Samhita, and the later Ashtanga Hridaya of Vagbhata.
Role of practitioner The hakim or tabib reads the pulse and restores the body's natural balance (tabiat). The vaidya reads the constitution and restores doshic balance and digestive fire.
Where practiced today India, Pakistan, Bangladesh and parts of the Middle East; a recognized AYUSH system in India. India, Nepal, Sri Lanka and a global diaspora; the senior AYUSH system in India.
Evidence base Largely classical and observational; a small modern research literature, much of it published within the AYUSH framework. Classical texts plus a growing but uneven body of modern trials; strongest signal for specific herbs rather than whole-system claims.
Best understood as The Greek humoral inheritance preserved, refined and kept alive in the Islamicate and South Asian world. An independent Indian system of constitution-based medicine with its own elemental physics.

Key Differences

  1. 1

    Four humors versus three doshas

    Unani is built on four akhlat: dam (blood), balgham (phlegm), safra (yellow bile), and sauda (black bile), each carrying a pair of qualities (blood is hot and wet, phlegm cold and wet, yellow bile hot and dry, black bile cold and dry). These are the four humors of Hippocrates, named in the Greek tradition and carried into Arabic as the akhlat arba.

    Ayurveda is built on three doshas. Vata, pitta and kapha are not humors in the Greek sense but functional principles assembled from the five elements. The numbers do not map cleanly: pitta overlaps with the bile humors, kapha with phlegm, and vata has no single humoral twin. The frameworks answer the same question — what fundamental forces, in what balance, make this body — with different arithmetic.

  2. 2

    Temperament versus constitution

    Both systems type the individual, and both use the typing to guide everything that follows. Unani assigns a mizaj, a temperament — sanguine, phlegmatic, choleric or melancholic — reflecting which humor and which qualities (heat, cold, wetness, dryness) run dominant. Galen's De Temperamentis first set out this typology, and Arab physicians refined it.

    Ayurveda assigns a prakriti, a constitution fixed at conception from the mix of the three doshas. The mizaj and the prakriti play the same structural role: both make the person, not the disease, the unit of analysis, and both hold that the same intervention can help one type and harm another. The difference is that mizaj rests on a four-quality grid while prakriti rests on three elemental forces.

  3. 3

    Pulse, urine and stool versus the eightfold examination

    Unani diagnosis leans heavily on nabz, the pulse, examined across a set of named conditions (its rate, force, rhythm, the feel of the artery wall) to read which humor is disturbed and whether the imbalance runs hot or cold, wet or dry. Inspection of urine (baul) and stool (baraz) completes the core triad, alongside history-taking.

    Ayurveda also reads the pulse — nadi pariksha — but frames it inside the ashtavidha pariksha, an eightfold examination that adds the tongue, voice, skin, eyes, general appearance, urine and stool. Both traditions converged on the wrist pulse and the inspection of waste as windows onto an invisible internal balance, centuries before either had a germ theory or a microscope.

  4. 4

    Four elements versus five

    Unani inherited the Greek four elements (fire, air, water, earth, the arkan) and built its humors and qualities on them. Each substance, food and drug carries its own temperament in degrees of heat and moisture, and treatment works by opposites: a hot-dry disorder is met with cold-wet remedies.

    Ayurveda works with five elements, adding ether (akasha) to the Greek four, and pairs them into the three doshas. This is not a trivial counting difference. The fifth element gives Ayurveda a category for space, channels and the subtle, and underwrites vata as a force with no clean Greek equivalent. The shared logic — elements compounding into forces, forces seeking balance — is unmistakable; the inventory differs by one.

Where They Agree

Unani and Ayurveda are close cousins, and the resemblance is not coincidental. Both are humoral-elemental systems that treat the whole person rather than an isolated organ, both type the individual before treating the complaint, and both read the wrist pulse and the appearance of urine and stool as diagnostic windows. Both place diet and regimen ahead of drugs, both compile vast materia medicas of herbs and minerals, and both understand disease as imbalance to be restored rather than an enemy to be killed.

The two traditions met and mingled on the ground. Unani arrived in India in the 12th-13th centuries with the Delhi Sultanate, carried by Persian and Arab hakims, and grew up alongside an Ayurveda already a millennium old. Over centuries of shared courts, shared patients and shared apothecaries, the systems borrowed plants, preparations and ideas from each other. The Silk Road and the Islamicate translation movement had already carried Indian, Greek and Persian medicine across the same routes, so the exchange in India was one more chapter in a long conversation rather than a first meeting.

Who Each Is For

Choose Unani if…

Unani may interest someone drawn to the Greek humoral tradition in its living form — the same four-humor and four-temperament framework that shaped European medicine for two thousand years, but preserved and still practiced rather than left in the history books. It speaks to a curiosity about how Hippocrates and Galen were read, refined and kept alive through the Arabic and Persian medical world and into South Asia.

In India, Pakistan and Bangladesh, Unani is a recognized system with its own colleges, hospitals and licensed hakims, and is one of the AYUSH systems regulated by the Indian government. As with any traditional system, it is educational and complementary in framing rather than a substitute for acute or emergency care; conditions that are life-threatening or rapidly progressing belong with conventional medicine.

Choose Ayurveda if…

Ayurveda may interest someone looking for a constitution-first approach to diet, daily rhythm and lifestyle, organized around the three doshas and the idea that the right routine depends on who you are rather than on a single universal prescription. Its strength is the detail of its lifestyle and dietary framework and the depth of its classical literature.

Ayurveda is the senior and most widely practiced of the Indian traditional systems, with the largest modern research literature — though the evidence is strongest for specific herbs and weakest for whole-system claims. Like Unani, it is best understood as educational and complementary; it does not replace conventional diagnosis or emergency care, and serious or acute conditions need that care first.

Bottom Line

Unani and Ayurveda are two answers to the same ancient question — what invisible forces, in what balance, make a body well or ill — reached by two civilizations that later sat side by side in India. Unani carries the Greek four humors and the temperament; Ayurveda carries the three doshas and the constitution. Where one sees blood, phlegm and the two biles, the other sees vata, pitta and kapha, and the maps overlap without lining up.

Neither is the more advanced or the more correct. They are parallel humoral-elemental traditions, and their long coexistence in South Asia left each carrying traces of the other. Reading them together shows how widely the humoral idea traveled and how differently it could be built — four elements or five, four types or three.

For a reader, the useful move is comparison, not allegiance. Both are educational reference frameworks for understanding constitution and balance, and both rest on classical observation rather than controlled trials. For anything acute, infectious or life-threatening, conventional medicine remains essential and cannot be substituted; the traditional systems are best read as lenses on the whole person, not as replacements for that care.

Connections

Unani sits within the wider family of Asian and humoral medical traditions on Satyori. Read the Unani overview and the Ayurveda overview side by side, and follow Ayurveda's three doshas in depth: vata, pitta and kapha.

For other systems that share the constitution-first, balance-restoring approach, see Traditional Chinese Medicine and Sowa Rigpa, the Tibetan tradition that itself blends Indian, Greek and Chinese roots.

Frequently Asked Questions

What is the difference between Unani and Ayurveda?

Unani is Greco-Arabic medicine built on four humors — blood, phlegm, yellow bile and black bile — and four temperaments inherited from Hippocrates and Galen, while Ayurveda is the Indian system built on three doshas (vata, pitta, kapha) and five elements. Both type the individual and treat imbalance, but they use different numbers of fundamental forces and elements.

Is Unani the same as Ayurveda?

No. They are separate traditions with separate origins — Unani is Greek by way of the Arab and Persian world, and Ayurveda is indigenously Indian. They look similar because both are humoral-elemental systems, and they borrowed from each other after Unani reached India, but their frameworks, texts and terminology are distinct.

How did Unani medicine come to India?

Unani arrived in India in roughly the 12th and 13th centuries with the establishment of the Delhi Sultanate, brought by Persian and Arab physicians known as hakims who served the courts. It later flourished under the Mughals and is now one of the AYUSH systems recognized by the Indian government.

Do Unani and Ayurveda both read the pulse?

Yes. Unani diagnosis centers on nabz (pulse) alongside inspection of urine and stool, and Ayurveda reads the pulse as nadi pariksha within its eightfold ashtavidha examination. Both traditions converged on the wrist pulse as a window onto internal balance long before modern diagnostics existed.

Which is older, Unani or Ayurveda?

Ayurveda's classical texts, the Charaka and Sushruta Samhitas, reach back into the first millennium BCE, making the Indian tradition the older of the two as a continuous system. Unani's Greek roots in Hippocrates are also ancient, but Unani as a named, systematized tradition took shape later through Arab and Persian physicians and reached India only in the medieval period.