This evaluation was made through 11 persons who discogenic disease and it emergency disease. There was all complains low back. with sustained buttock pain with radiating to the leg due to piriformis syndrome during the period of march 2000 to November 1999 in seoul wooridul hospital. The purpose of this study was to determine the effect of manual therapy through 11 persons. The results were as follow : 1. Right buttock pain group(n = 11). there was significant difference before manual treatment(P<.05). 2. Pain decreased before Tx then after Tx by VAS.