Medical narrations, as part of the narrative heritage, have always been considered with respect and obedience by Muslims. Different groups of Shiite and Sunni scholars (i. e., sages, topologists, narrators, fuqahā , and Akhbarian) have each encountered these narrations in different ways. The explanation of the methodical understanding principles and criteria for the content critique of these narrations are among important issues investigated in the field of " Religion of Health” , as well as the main question of this study, which is performed in an analytical-descriptive method. The findings of this article were the presentation of the following criteria as a methodology for understanding and content critique of medical narrations from the perspective of Shiite scholars, namely inclusion of guidance on both the physical and mental aspects as a requirement for the explanatory dignity of the Infallibles from the Holy Qur’ an, a basis adoption regarding revelation or normalization of the above narrations, explanation of "Medical Monographs" by religion, falsity of many of these narrations, impermissibility of acting on a single report in the field of scientific and developmental concepts, impermissibility of practicing the rule of "tolerance in the proofs of traditions" in the field of medical narrations, lack of opposition to the concepts of the Holy Qur’ an and valid tradition and their derived rules, lack of opposition to the definite achievements of human knowledge, impermissibility of generalizing "transcendental" characteristic to all medical narrations, necessity of distinguishing between ontological and normative medical narrations, lack of the semantic weakness of the hadith, necessity of thematic study of medical narrations, interdisciplinary nature of research in the field of these narrations, and dissimilarity of these narrations with the medical point of view derived from Greek books and contents of public narrations.