Materials and Methods: This cross-sectional study was conducted in infertility centers of Hormozgan University of Medical Science (HUMS). Totally, 250 infertile couples were included. The variables including socio-demographic characteristics, smoking, body mass index (BMI), and infertility status (e.g., type of fertility, duration, etc.) were assessed by a self-administered and validated questionnaire. Data analysis was carried out using SPSS version 22.0.

Results: The most common causes of male and female infertility were varicocele (49.4%) and ovulation disorders (57.5%), respectively. There was a significant association between female factor infertility and level of education, age of women, women?s age at marriage, number of abortions, alcohol consumption, presence of an underlying disease, and BMI (P < 0.005). There was also a significant relationship between male factor infertility and men?s job, addiction, smoking, and presence of an underlying disease (P < 0.005).

Conclusions: Considering various risk factors for infertility, an important step forward can be taken towards reducing the incidence of these risk factors by providing different education classes during pre-marriage, pre-partum, pregnancy and postpartum periods so as to inform couples of controllable risk factors.