The rules of understanding the medical traditions (Hadith-Tellings) based on the role of evidence attached

One of the most important sources in Islamic traditional medicine is the hadiths remaining from infallible imam and the first condition for using the hadiths especially in medicine is the exact and correct understanding. The systematic and accurate understanding on fulfillment of certain conditions and applying the rules of understanding are based on the features like various aspects of semantic, generalization and encumbrance, generality and particular meaning, firm and similar ayat, abrogating and abrogated in one hand, the narrative transition from time to time and various historical vicissitudes and as a result of various damages like distort spiritual and literal, paraphrase, ambiguity, ijaz, forging and etc. in narrations of the infallible Imam. In understanding of medical traditions, the evidence attached is used more among the rules of understanding. This study analyzed the attached evidence and studied about how they are used in understanding of traditions.