Objective: Recurrence of ovarian mucinous cystadenomas is very rare. This report describes a case of ovarian mucous cystadenoma in a women that recurred 2 years after surgery.
 Case presentation: A 22-year-old patient, with a sizable ovarian tumor underwent laparoscopic-assisted cystectomy. On histopathology, the tumor was diagnosed to be an ovarian mucinous cystadenoma. The mucinous cystadenoma recurred 2 years after surgery and subsequently laparoscopic right adnexectomy was performed.
 Discussion: It has been reported that intraoperative cyst rupture and cystectomy instead of adnexectomy are risk factors for mucinous cystadenoma recurrence. Close follow-up is required for post-cystectomy patients because of the possibility of recurrence.
 Conclusion: The risk of recurrence and the preservation of fertility should be carefully considered when deciding on treatment in young patients with a mucinous cystadenoma. The follow-up is required for post-cystectomy patients because of the possibility of recurrence.