Women who have previously benign complex adnexal mass on ovary are more at risk developing further on same ovary ovarian cancer?

No, if it is benign: Diagnosing and managing adnexal masses is a problem. Most are diagnosed incidentally. Masses that are not obviously benign should undergo surgical intervention. It can be difficult to determine if a adnexal mass is benign or malignant. Masses in premenopausal women typically have a gynecologic source (e.g., functional cysts), whereas masses in postmenopausal women are typically benign neoplasms.

Ovarian cancer: There is not much of a connection between the history of a previous benign mass and the development of ovarian cancer.