An Ayurvedic Interpretation and Contemporary Anatomical Correlation of Jaaldhara Sira with the Great Saphenous Vein

The concept of Sira in Ayurvedic literature represents vital tubular structures responsible for the circulation of bodily fluids, especially blood. Among these, Avedhya Siras—veins that must not be punctured—are given special anatomical and clinical significance. Jaladhara Sira, one such Avedhya Sira located in the lower limb, has been identified by Acharya Ghanekar as corresponding to the modern anatomical Great Saphenous Vein (GSV), the longest superficial vein in the human body. This study aims to correlate the classical description of Jaladhara Sira with contemporary anatomical understanding of the GSV. Through a literary review of classical Ayurvedic texts and comparison with modern anatomical sources, the article explores the location, course and clinical relevance of this venous structure. The GSV plays a key role in venous return, and its incompetence is a major contributor to varicose veins and venous ulcers, especially around the gaiter region near the medial malleolus—an area closely associated with Gulpha Sandhi and Gulpha Marma in Ayurveda. The analysis concludes that the traditional designation of Jaladhara Sira as Avedhya is not only symbolically significant but also clinically rational. The congruence of Ayurvedic and modern anatomical perspectives emphasizes the enduring relevance of classical anatomical knowledge in contemporary contexts.