CXCR4 and adenomyosis: Since both mifepristone and AMD3100 inhibit the migration ability of endometrial epithelial cells and stromal cells in adenomyosis and CXCR4 expression was down‐regulated by mifepristone treatment, it is evident that mifepristone inhibits the migratory capacity of the eutopic endometrial epithelial cells and stromal cells through suppressing CXCR4 expression in adenomyosis.