Conclusion rectifying treatment of the cavity after ess is necessary to patients who fail to be followed - up actively and is necessary to improve the curative effect of ess and the avoidance of revision ess 结论鼻窦内镜手术后术腔未按时清理的矫正性治疗可矫正鼻窦内镜手术后连续一定时期内未主动随访所致术腔的再生病变,提高治愈率。