Background and Objectives:A variety of tonsillectomy has ben performed to treat chronic tonsillitis or tonsillar enlargement. he heat-induced tissue damage accompanied by electrocautery. The aim of this study is to find the advantages and disadvantages of coblation tonsillectomy compared with conventional tonsillectomy using cold disection. Subjects and Method:Eighteen patients who underwent tonsilectomy in St. Pauls hospital between January and June in 2006 were included in this study. Conventional tonsillectomy was performed on one side, and coblation tonsillectomy on the other side in one subject. The operation time, post-. Results:The operation time, postoperative otalgia, and bleeding rate were not significantly diferent for either sides. The post-operative pain was les severe on the coblation side only on the third day. But the mucosal healing of the tonsillar fosa was more rapid on the coblation side than cold disection side. Conclusion:Coblation tonsillectomy can be a new method that will ensure il-lectomy. (Korean J Otorhinolaryngol-Head Neck Surg 2007 ;50 :612-5)