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by Smith H

(ED; Erectile Dysfunction; Male Erectile Disorder)



The following factors can cause erectile dysfunction:

Venous Leak

The blood vessels that keep the blood from leaving the penis may be injured or have disease. This can cause a leak in these vessels. Blood can escape through these leaks during an erection. This means that an erection cannot be made or may not last long.

Neurovascular Function

Problems with the nerves and blood vessels can cause impotence. Conditions that can cause problems include:
Blood Vessels and Nerves of Male Pelvis
Nerves, blood vessels, penis
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Psychological Factors

Many of the nerve signals needed for an erection come from the brain. Emotional problems may play a role in men who suddenly develop impotence.

Risk Factors

Factors that increase your chance of developing impotence include:


To reduce your chance of becoming impotent:


American Academy of Family Physicians

Urology Care Foundation



Canadian Urological Association




Erectile dysfunction. EBSCO DynaMed website. Available at: . Updated August 8, 2013. Accessed August 22, 2013.

Erectile dysfunction. National Institute of Diabetes & Digestive & Kidney Diseases website. Available at: . Updated March 28, 2012. Accessed August 22, 2013.

Erectile dysfunction. Urology Care Foundation website. Available at: . Updated 2009. Accessed August 22, 2013.

Viera A, Shenenberger D, Green G. Am Fam Physician. 199 Sep 15;60(4):1159-66. Available at: . Updated December 2006. Accessed September 17, 2012.


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