Impotence Causes
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Causes of Impotence
To initiate and maintain an erection, the penis must fill with blood. Nerve signals cause the blood to flow there. The blood vessels expand so blood can fill it. Meanwhile, other blood vessels constrict, trapping blood inside.
The following factors can cause erectile dysfunction:
Venous Leak
A leak in the blood vessels in the penis can allow blood to escape. This means that an erection cannot be made or may not last long. Injury or disease can cause a venous leak.
Neurovascular Function
- Problems with nerve signals and blood flow
- Nerve dysfunction-can reduce feeling in the penis, resulting in impotence
- Insulin-resistant Diabetes -interferes with nerve signals
- Complete loss of nighttime erections
- Atherosclerosis -can cause reduced blood flow
- Peripheral Neuropathy , spinal cord injury, and surgery-can damage nerves
- Side-effects from medications
© 2009 Nucleus Medical Media, Inc.
Psychological Factors
The brain causes many of the nerve signals needed for an erection. Emotional problems may play a role in men who suddenly develop impotence.
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