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Additional
impotence
English Wikipedia - The Free Encyclopedia
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Erectile dysfunction
Erectile dysfunction
(
ED
) or
impotence
is
sexual dysfunction
characterized by the inability to develop or maintain an
erection
of the
penis
during
sexual activity
. A penile erection is the
hydraulic
effect of blood entering and being retained in sponge-like bodies within the penis. The process is most often initiated as a result of
sexual arousal
, when signals are transmitted from the
brain
to
nerves
in the penis. The most important organic causes are
cardiovascular disease
and
diabetes
, neurological problems (for example, trauma from
prostatectomy
surgery),
hormonal
insufficiencies (
hypogonadism
) and
drug side effects
.
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