It seems that the symptoms and consequences of endometriosis impose a considerable physical, psychological, social and economic burden on affected women, their families and society. Therefore, many studies have investigated the effects of endometriosis on the patients' quality of life (1, 5, 9, 10, 14-16). Chronic pelvic pain, which is the most common complaint of endometriosis patients, is a complex situation which can disrupt all aspects of daily life (3, 11, 17). Infertility caused by endometriosis, is a risk factor for mental health problems and can lead to reduced levels of psychological well-being (3). These symptoms, as well as other symptoms of endometriosis such as dysmenorrheal, dyspareunia, lower abdominal pain, fatigue, headache, can lead to reduced productivity, impaired individual life and family relationships, sexual dysfunction and dissatisfaction, and the loss of healthy and active body condition, which in turn threaten mental health (12, 15, 18). Delays in condition diagnosis and lack of treatment also exacerbate these effects (3). Indeed, endometriosis has a high economic burden due to its various negative impacts and the chronic nature of disease (7, 12, 18). The social, psychological and economic disadvantages of endometriosis are worthy of attention (19). In recent years, there have been many studies on the relationship between endometriosis and psychological and emotional factors such as stress, anxiety, feelings of disappointment, low self-esteem, mood disorders and bipolar disorder (12, 17-25), but findings are inconsistent (26). Some studies have also examined a reverse causal relationship between endometriosis symptoms and psychological factors. For example, some researchers