Kasayapa has mentioned that Snayu Pratana are originated from the Mastulunga Mula (Kasayapa. Sha) Trauma to Snayu can also lead to the poverty of movements (Su.Su–25/37, M. Ni.– 43/21),
pathological state of Snayu is Snayugata vata which is manifested as Bahyayama, Antarayam, khalli, Kubhjata, Sarvangavata and Ek Angagata Vata.
In these pathological conditions sometimes Snayu Sosa is also found (Ca.Ci.– 28/5). So in Kampavata involvement of Snayu by vitiated Vata is an important pathological factor which is characterized by Stambha (rigidity), Kampa (tremor) Shula (pain),and Akshepaka (Su.Ni-1/27)