Last verified: April 2026
Gridhrasi — Sciatica
Gridhrasi is the classical Ayurvedic documentation of sciatica — named for the characteristic limping gait produced by the condition (resembling the vulture's awkward walk). Charaka Samhita and Ashtanga Hridayam document Gridhrasi as a specific Vata condition affecting the channels of the lower back and lower limb — a condition whose classical description so precisely matches the modern sciatic nerve distribution that it is one of the most straightforward classical-modern correspondences in Ayurvedic clinical literature.
Two classical types
Vataja Gridhrasi: Pure Vata involvement — shooting pain along the path described in the classical verse (the sciatic distribution); no fever, no heaviness; aggravated by cold, Vata-aggravating activities; relieved by warm oil application. Primary treatment: warm oil Basti, Kati Basti (oil pooling in lower back), Abhyanga with warm Mahanarayana Taila.
Vata-Kaphaja Gridhrasi: Vata and Kapha combined — shooting pain with heaviness, stiffness, and numbness; associated with heaviness in the affected limb; the Kapha component produces channel-blocking (Sanga in Gridhrasi Srotas). Primary treatment: Nirgundi steam (Patra Pinda Sweda) to address the Kapha component alongside Vatahara procedures.
Kati Basti — oil pooling in lower back
Kati Basti (a dough ring placed on the lower back, filled with warm medicated oil — Mahanarayana Taila, Kshirabala Taila, or Dhanvantaram Taila) is the primary Kerala Panchakarma procedure for Gridhrasi. The warm oil held against the lumbar spine for 20–30 minutes penetrates the lumbar channels, reducing the Vata-dryness and the inflammation in the channels adjacent to the sciatic nerve roots.