Conclusion
This systematic review supports the assumption that symptoms of depression and anxiety in endometriosis patients are related to chronic pain. Anxiety and depression may influence pain perception in endometriosis patients, and, currently, there is no consensus regarding which condition comes first. Broad correlating factors should be further investigated in order to predict the risk of developing symptoms of depression and anxiety in endometriosis patients. Besides medical endometriosis treatment as well as behavioural pain management, the improvement of emotion regulation skills should be a treatment goal in endometriosis patients as well [102].