Some limitations should be noted. There were not many cases of CKC and LEEP with subsequent hysterectomy at the time of the study at Siriraj Hospi- al, so the authors did not separately analyze between CKC and LEEP in the aspect of different on residual dysplasia in hysterectomy specimens. Also sub- sequent hysterectomy was not performed in all cases who underwent CKC or LEEP. This could have some effects the prevalence of the present study