To evaluate the etiology of erectile dysfunction: What should we know currently?

Erectile dysfunction (ED) is the inability to develop normal erection or an hardening problem at various extent that causes inability to maintain the erection for the sufficient time required for a complete sexual activity. It can be the result of neurologic, psychogenic, vascular, urogenital and hormonal abnormalities. It is reported that it affects 52-67% of men between 40 and 70 years old. Numerous theories and opinions are issued in the literature in order to explain the hemodynamic changea that occur during erection and detumescence. Especially the effects of chronic diseases and psychogenic factors on the pathophysiology of erectile dysfunction are common matters of discussion in recent years. In this review, we will evaluate the current developments in the literature about the etiology of erectile dysfunction.