Objective: To evaluate the relationship between the size of endometrioma and serum Anti-mullerian hormone (AMH).
Study design: A Descriptive study.
Place and duration of study: This study was conducted at the Bagcilar Training and Research Hospital, Istanbul, Turkey, from January 2015 to January 2020.
Methodology: Healthy women of reproductive age, who were found to have unilateral endometrioma in ultrasonography, were included in the study group. There were 82 female patients with unilateral endometrioma in the study group and 96 healthy female patients with male factor infertility in the control group. Women with autoimmune disease, a history of pelvic infection or surgery, polycystic ovary syndrome, pregnancy, those undergoing infertility treatment, family history of premature ovarian failure, and those with atypical or suspected endometrioma were excluded. Age, gravida, serum AMH value, and endometrioma size of the study and control groups were recorded. In addition, the endometrioma group was divided into 2 groups with a cut-off size of greater or less than 40 mm. AMH values were evaluated in these two groups.
Results: AMH values of women with endometrioma were significantly lower than the control group (2.03 ng/ml and 3.87 ng/ml, respectively, p<0.001). When the relationship between endometrioma size (greater than 40 mm and less than 40 mm) and AMH was examined, no statistically significant difference was found among serum AMH values (1.89 ng/ml and 2.07 ng/ml, respectively, p=0.65).
Conclusion: The presence of endometrioma was associated with lower AMH suggesting lower ovarian reserve, but endometrioma size was not associated with significant difference in the AMH values.
Key words: Endometrioma, AMH, Ovarian reserve, Endometrioma size.