Erectile Dysfunction - ED
Erectile dysfunction (ED) is the inability of a
man to achieve or maintain an erection sufficient
for his or his partner's sexual needs. Most men
experience this at some point in their lives,
usually by age 40.
Incidence of the disorder generally increases with
age. ED affects about 5% of men in their 40s and
15-25% of men by the age of 65. 50% of men over
the age of 40 may experience transient ED and
inadequate erection.
Physical or psychological stimulation (arousal)
results in significant blood flow to the penis.
The arteries in the penis supply blood to erectile
tissue, which become engorged and expands as a
result of increased blood flow and pressure. This
constricts the fibrous elastic sheathes that cinch
to prevent blood from leaving the penis during
erection.
Causes of Erectile Dysfunction
Reduced blood flow to the penis and nerve damage
are the most common physical causes. Underlying
conditions associated with erectile dysfunction
include the following:
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Vascular disease
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Diabetes
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Drugs
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Hormone disorders
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Neurologic conditions
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Pelvic trauma, surgery, radiation therapy
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Peyronie's disease
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Venous leak
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Psychological condition
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