>>Introduction
Impotence, or erectile dysfunction, is the inability to achieve an erection, and/or dissatisfaction with the size, rigidity, and/or duration of erections. Erectile dysfunction affects millions of men. Although in the past it was commonly believed to be due to psychological problems, it is now known that 80 to 90 percent of impotence is caused by physical problems, usually related to the blood supply of the penis. Many advances have occurred in both diagnosis and treatment of erectile dysfunction. If you are a male and worried about your sexual performance or if you feel that there is some deterioration in your performance, please take the sexual performance score seriously.


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