The impact of premature ovarian insufficiency on sexual function; which domain is mostly disrupted?

This study aimed to compare the sexual function (SF) and its domains between women with idiopathic premature ovarian insufficiency (POI) and healthy control. A cross-sectional study was conducted on 63 married women with idiopathic POI, referred to the reproductive endocrinology research center (Tehran, Iran), and 784 married women with regular menstrual cycles who visited for routine annual gynecological exams in 2021-2022. The Female Sexual Function Index (FSFI) questionnaire was used to assess the SF of participants. Linear regression and factor analysis were used to analyze the data. Characteristics were similar in both study groups except for body mass index, hip circumference, job status, and number of deliveries. The mean score (standard deviation) of FSFI in women with POI and control were 21.70 (9.0) and 24.30 (5.0), respectively (P < 0.001). All domains' scores of FSFI were significantly lower in POI women than in the control group (P < 0.05). After adjusting for potential confounders, these findings remained unchanged. Factor analysis demonstrated the arousal and lubrication domains as the most influential factors SF among POI women, while the desire domain played the lowest role. In addition to various health conditions threatening POI women's future lives, sexual disturbances must be addressed in their routine care.