Rainwater on Raw Meat: Diagnosing Leprosy and Other Serpentine Diseases in Tibet

In Tibetan medical and religious texts, leprosy is understood as a type of “serpentine disease” (klu nad), a nosological category that links individual bodily affliction with the agency of serpent spirits and other inhabitants of the animated landscape. This paper examines diagnostic and prognostic techniques for serpentine disease in the Dialogue of the Serpent King and its exegetical tradition, arguing that this literature reveals not a unified healing system but a dialogical negotiation between religious and medical frameworks for anticipating the future course of disease. From the cold-water test for anesthetic “corpse flesh” to decade-long prognostic timelines, Tibetan physicians and ritual specialists developed remarkably precise methods for calibrating futures that neither ritual propitiation nor medicinal intervention could always alter. Incurability, in this literature, emerges not as a failure of medicine or religion but as a diagnosis produced at their intersection.