Mechanisms Of Erection And Causes Of Impotence.
Erectile dysfunction – is the inability to achieve or maintain an erection sufficient for sexual activity. This term was proposed in 1988 by the National Institute of Health instead of the word “impotence”, and in 1992 adopted by international organizations of Urology and Andrology. This definition more fully and accurately characterizes the diversity of expressed sexual disorders. It includes not only the failure to hold the penis erected, but the breach of orgasm and the weakening of libido (sexual desire). They speak about erectile dysfunction only if there is a problem with erectile dysfunction for a long period (3-6 months).
According to the latest data:
- About one in 10 men has some degree of impotence;
- In the world approximately 152 million men have erectile dysfunction;
- More than 50% of men aged 40 to 70 years suffer from erectile dysfunction;
- Every year, 900,000 men are diagnosed with erectile dysfunction.
Mechanism of erection.
An erection occurs due to the increased blood supply of the penis. The sharp increase in the flow of blood fills, stretch and make solid cavernous body. This state is supported by cessation of outflow of blood. Nervous and hormonal systems cause and regulate offensive of erection, producing activating or inhibiting biochemical substances. Certain sections of the spinal cord produce these substances in response to stimulation of the genitals and erogenous zones of the body, and brain structure – under the influence of excitation of communication with sexual partner and sexual fantasies. Thus, an erection occurs as a result of the interaction of vascular, nervous and hormonal systems.
Causes of impotence.
Erectile dysfunction is the result of various causes. The most common causes are organic (injury, disease, side effects). Below there are the major risk factors for the development of impotence:
Treatment of prostate cancer (surgery and irradiation);
Heart disease;
Diabetes (primary cause of impotence);
Arteriosclerosis;
Hypertension;
Smoking;
Side effects of drug therapy;
Alcoholism;
Hypohepatia;
Neurological disorders (spinal cord injuries or multiple sclerosis);
Hormone imbalance.
Organic causes of erectile dysfunction reduces or do not allow the blood flow or conducting a nerve impulse to the penis. At the present time believe that erectile dysfunction in approximately 50% of cases is caused mainly by organic factors, 20% – predominantly psychogenic and 30% – a combination of organic and psychogenic causes. In most cases, men with impotence feel anxiety, guilt or depression. These states further worsen the patient’s condition.
Organic impotence begins gradually. The first signs – reduction of rigidity and the frequency of erections, the appearance of incomplete erections, and then complete loss of erectile function. Normally the libido is stored, so the disease affects quality of life and self-esteem, causes stress and difficulties in communication. Fear to be untenable causes impotence.
Erectile dysfunction can be treated and complete cure is often observed at the patients. According to the American Medical Association doctors can effectively treat 95% of cases of impotence.
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