| Erectile dysfunction (ED) or impotence is a
sexual dysfunction characterized by the inability to develop or
maintain an erection of the penis for satisfactory sexual intercourse
regardless of the capability of ejaculation......learn
more
Medical symptoms
Erectile dysfunction is characterized by the inability to maintain
an erection. Normal erections during sleep and in the early morning
suggest a psychogenic cause, while loss of these erections may signify
underlying disease, often cardiovascular in origin.... learn
more
Pathophysiology Penile erection is managed
by two different mechanisms. The first one is the reflex erection,
which is achieved by directly touching the penile shaft. The second
is the psychogenic erection, which is achieved by erotic stimuli........learn
more
Treatment
Treatment depends on the cause. Testosterone supplements may be
used for cases due to hormonal deficiency. However, the cause is
more usually lack of adequate penile blood supply as a result of
damage to inner walls of blood vessels. This damage is more frequent
in older men, and often associated with disease, in particular ...learn
more
History
Dr. John R. Brinkley began a fad for finding cures for male impotence
during the 1930s. He used the medium of radio to achieve the same
kind of advertising boom to treat the same kind of symptoms...learn
more
Penile erection. An uncircumcised penis flaccid
(left) and erect (right)The pituitary gland, the prostate and testosterone
all have an important role in the process of erection of a penis...learn
more
The clitoris is a female sexual organ. In humans,
the visible knob-like portion is located near the anterior junction
of the labia minora, above the opening of the vagina. Unlike the
homologous male organ (the penis), the clitoris does not contain
the distal portion of the urethra and functions solely to induce
sexual pleasure. The only known exception to this is in the Spotted
Hyena, where the urogenital system is modified so that the female
urinates, mates and gives birth via an enlarged, erectile clitoris,
known ...learn more
Men's-health pills One of the forms of phophodiesterase
is termed PDE5. The prescription PDE5 inhibitors sildenafil
(Viagra®), vardenafil
(Levitra®) and tadalafil
(Cialis®) are prescription drugs which
are taken orally. They work by blocking the action of PDE5, which
causes cGMP to degrade. CGMP specific phosphodiesterase type 5|cGMP]]
causes the smooth muscle of the arteries in the penis to relax,
allowing the corpus cavernosum to fill with blood.
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