Unani medicine, also known as Unani Tibb or Yunani Medicine, is a traditional system of medicine that originated in ancient Greece and was further developed in the Indian subcontinent. The term "Unani" is derived from the word "Unan," which means Greece. Unani medicine is based on the teachings of Greek physicians Hippocrates and Galen and is influenced by the principles of the ancient Greek concept of the four humors: blood, phlegm, yellow bile, and black bile.

Key principles and features of Unani medicine include:

Unani medicine has been historically practiced and continues to be popular in various parts of South Asia, the Middle East, and other regions with a strong historical connection to Islamic culture. In modern times, Unani medicine has seen efforts to integrate its practices with contemporary medical systems and has gained recognition as an alternative form of medicine in several countries. As with any traditional system of medicine, it's essential for individuals to consult qualified and experienced Unani practitioners for safe and effective treatments, especially if they have pre-existing health conditions or are taking medications.