This is a Vata roga, characterized by Sharp Shocking pain radiating from the Hip up to Thigh, Calf or the Toes in one or both the Legs. Numbness, Weakness, Tingling sensation Discomfort along the path of the Sciatic Nerve are the results of Compression, Irritation Inflammation of the Sciatic Nerve Ayurveda believes that sciatica/Gridhrasi is caused by the aggravation of vata (the one which isresponsible for the movement of the muscles & the sensation of the nerves) Sometimes the vitiation of Kapha (phlegm and the body fluids) along with Vata brings on the attack. At times constipation precipitates or aggravates an attack of sciatica.