Based on the correlation between endometriosis and inflammation and oxidative stress, and its similar characteristics to tumors, this study intends to detect the expression of NF-κB and IER3 in recurrent and non-recurrent ovarian endometrioid cyst tissues by immunohistochemical method, and investigate the correlation between NF-κB and IER3 and the recurrence of the ovarian endometrioid cyst. This evidence concerns the gene IER3 and endometriosis.