What is Erectile Dysfunction?
Erectile Dysfunction Overview Erectile dysfunction, also called impotence, is the inability to attain or maintain an erection of the penis that is firm enough for penetration during sexual intercourse. To initiate and maintain an erection, the penis must fill with blood. Nerve signals stimulate this engorgement. They prompt the blood vessels in the penis to expand so blood can fill it. Meanwhile, other blood vessels constrict, trapping blood inside. Male Genitourinary System © 2009 Nucleus Medical Media, Inc. The following factors can cause erectile dysfunction: Venous Leak:If the blood vessels (veins), which normally are compressed by the blood filling the penis during an erection, are not fully compressed, an erection may not be attainable, or may not last long. This can be caused by injury or diseases which prevent the full... Erectile Dysfunction Causes A risk factor is something that increases your likelihood of getting a disease or condition. It is possible to develop erectil