PReservation Study of Ovarian Function And Hemostasis, and Its Safety of Surgiguard@ During Laparoscopic Ovarian Cystectomy

Inclusion Criteria: * Female, 18 years ≤ Ages \<45 years * laparoscopic unilateral ovarian cystectomy scheduled patients with benign unilateral ovarian cyst confirmed by ultrasonography * women with regular menstruation * women with regular menstruation cycle from 21 days to 45 days * Proper state for laparoscopic operation (American society of Anesthesiologists Physical Status classification 1 or 2) * Patients who signed and approved informed consent Exclusion Criteria: * Patients without ovarian cyst * Patients with malignant female genital disease * Patients with bilateral ovarian cysts * Age ≥ 45 * Pregnancy or lactating women * Serum AMH\<0.05 ng/ml * Patients with endocrine disease such as thyroid abnormality, hyperprolactinemia, cushing disease, etc * Patients with hormone replacement therapy during 3 months * Patients who is considered to be difficult to perform the clinical trial when researchers judge