History of Unani Medicine: From Greece to the Islamic World to South Asia

Why history matters here

Unani medicine is a living tradition, and its story crosses several regions and languages. Knowing where its ideas came from helps explain its vocabulary and why some practices look like those in Greek, Persian and Arabic texts. History is not evidence that a treatment works; for that, see what research shows for Unani and historical use vs clinical evidence.

Greek foundations

The name comes from "Ionian," the Arabic word for Greek. [1] Reference sources trace Unani to Hippocrates and his followers in Greece. [1] The Hippocratic Corpus, the collected writings attributed to Hippocrates, contains about sixty works on topics from diagnosis to surgery. [2] It describes four bodily fluids, or humors (blood, phlegm, yellow bile and black bile), that needed to be kept in balance. [2] Galen, born in Pergamos in Asia Minor in 129 CE, built on this; his works came to symbolize Greek medicine for scholars in Europe and the Middle East for some fifteen centuries. [2]

Translation and growth in the Muslim world

A review of the period after Galen describes an unprecedented translation movement in 9th-century Baghdad that brought Greek and Hellenistic knowledge together in large Arabic medical compendia, whose Latin versions later became standard texts in medical schools. [3] Another review describes translation of medical texts from Greek, Latin and other languages into Arabic, helped by the spread of paper-making in the Abbasid caliphate. [4]

Persian scholarship fed into this. The physician Tayadhuq (died early 8th century) was educated in the Gondeshapur school and served the Sassanid kings; his ideas were followed by later physicians including Rhazes (al-Razi, died 925) and Avicenna (Ibn Sina, died 1037). [5] This page does not describe their individual works because we read only abstracts. For the Persian line of the tradition see Traditional Persian Medicine.

Arrival and development in South Asia

A 2015 history review describes Unani in India as based on Greco-Arab medicine and the teachings of Hippocrates, Galen and Arab physicians, enriched with local elements. [6] It says the Hippocratic principles were assimilated successfully in a country with a different philosophy and worldview. [6] A review by Unani-college authors says the system became established under Persian and Arab patronage and came to the Indian subcontinent around the middle of the 14th century. [7]

We could not read a source that covers individual courts, hospitals, families of physicians or specific books in India, so this page does not name them. Proper evidence not found for those details in the sources we could access this session.

Colonial period

A 2026 historical article examines how Ayurveda, Unani Tibb and Siddha met Western biomedicine in British colonial India (about 1757 to 1947). It argues that colonial policies excluded these traditions, while taking up parts considered useful, and that practitioners and reformers responded by engaging with colonial institutions and drawing on classical texts. [8] The author says the effects still shape health policy in South Asia today. [8]

Modern recognition

Today Unani is one of the systems covered by India's National Commission for Indian System of Medicine Act, 2020, which also covers Ayurveda, Siddha and Sowa-Rigpa. [9] For training and legal status see Unani in India and Pakistan.

What history does and does not tell us

• It shows where concepts such as humors and temperament came from.
• It does not show that a remedy is safe or effective. A reference source says robust scientific evidence of Unani's benefits is lacking, even though the tradition has an extensive history. [1]
• It does not settle who "owns" the tradition: Greek, Persian, Arab and South Asian physicians all shaped it, and writing about it should name them specifically.