Background: Sexual dysfunction is a common complication of type 2 diabetes in males and females. Although sexual function is important, it is often neglected as a component of type 2 diabetes care. Objectives: This study aimed at investigating the association between sexual function and marital dissatisfaction in males and females with type 2 diabetes living in southern Iran. Methods: This study was a case-control research, which was carried out on 120 non-pregnant females and 120 males with type 2 diabetes. In addition, available samples of healthy individuals (120 females and 120 males), who referred to central cares located in Zarand, Kerman during year 2015, were used as the control group. The female sexual function data was obtained based on a questionnaire compromised of Rosen female sexual function indices (FSFI, 2000). The international index of erectile function (IIEF) questionnaire was used to obtain male sexual dysfunction data. Results: Forty-one diabetic individuals (17.08%) of total diabetic participants had impaired sexual function, 29 of which (70.73%) were male (with higher rates in males than females, P < 0.05). In addition, 12 diabetic patients (5%) had decreased sexual desire and 66.6% were diabetic males. There was no significant difference in sexual desire between healthy and diabetic groups. Sexual arousal was significantly (P < 0.001) lower in the diabetic group compared with healthy individuals. In addition, sexual lubrication (P = 0.008), orgasm (P = 0.003), satisfaction (P = 0.05), and dyspareunia (P = 0.05) scores were significantly higher in the healthy group in comparison to the diabetic group. Severe erectile dysfunction was significantly (P < 0.001) greater between diabetic than the healthy group. Sexual dissatisfaction was significantly (P < 0.001) higher in diabetic males compared to healthy individuals; the amount of libido average and marital life satisfaction were significantly lower in diabetic males (P = 0.01). Conclusions: Based on the findings of this study, counseling, and prevention of diseases, such as diabetes is suggested along with a focus on marital and sexual relations at the age of fertility.
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