Susruta (Suśruta)

Importance to Hirudotherapy

Susruta occupies the foundational position in the Indian textual tradition of medicinal leech application. The Sushruta Samhita, whose extant form is generally dated by scholars to the early centuries of the common era but whose core material is traditionally ascribed to a much earlier teaching lineage, contains the earliest known systematic surgical and procedural discussion of leech therapy in any medical literature. The dedicated chapter on leech application within the Sutrasthana describes the procedure in remarkable practical detail: how to identify suitable therapeutic species, how to keep leeches before use, how to encourage attachment to the patient, how to detach leeches once feeding is complete, and how to manage the patient and the leech afterwards. The Indian tradition's classification of leeches into categories of suitability for medical use — distinguishing therapeutic leeches from those whose bite was considered harmful — represents one of the earliest exercises in what would today be called medical-grade species selection. The same conceptual move would be made again, with modern molecular taxonomy, in the twenty-first century when Siddall and colleagues clarified that the commercial medicinal leech of European pharmacies was largely Hirudo verbana rather than Hirudo medicinalis sensu stricto. The American Society of Hirudotherapy regards the Sushruta tradition as one of the great independent ancient sources of medicinal-leech doctrine, parallel to and largely independent of the Greco-Roman lineage that runs from Hippocrates through Galen and Avicenna. The persistence of jalauka therapy within classical Ayurveda — and its formal recognition by the Government of India's Ministry of AYUSH as a regulated traditional medical procedure — represents a continuous practice tradition extending across more than two thousand years.