Sixteen women with polycystic ovary syndrome (PCOS) were treated with laparoscopic multifollicular puncture and resection (MPR), an original technique which we substitute for ovarian wedge resection. Serum luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone (T), estrone (E1), estradiol (E2), androstenedione (A) and dehydroepiandrosterone sulphate (DHEAS) were measured daily before and after the operation. Clinically, 15 of the 16 patients (93.8%) exhibited spontaneous ovulation and pregnancies occurred in 8 patients (50%). Significant hormonal changes were observed in serum T. Serum T levels dropped in response to the treatment and remained low for 5 days. Serum E1 A, DHEAS and LH levels were elevated before treatment and did not change after the operation. Serum E2 and FSH levels were within the normal range before the treatment and did not change after the operation. We conclude that surgical treatment for PCOS patients should consist of laparoscopic MPR.