Erectile dysfunction

Abstract

Erectile dysfunctionis is defined as the persistent inability to achieve or maintain an erection sufficient for satisfactory sexual performance. In most sexual intercourses you have a Marked difficulty in obtaining an erection and / or a marked difficulty in maintaining an erection and / or a marked decrease in stiffness. Worldwide prevalence of erectile dysfunction is occasionally 13%-21% for those 40-80 years old; frequently 2% for those 40-50 years old; significantly 40%-50% for those 60-70 years old; and 8% for those who have stopped penetrating during the first sexual. The erectile dysfunction may emerge from the beginning of the sexual life or begin after a period of relatively normal sexual function.