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Types of Erectile Dysfunction

Erectile dysfunction is defined as lasting or repeated inability to achieve sufficient rigidity of the penis and hold it long enough for successful intercourse. The term refers only to the ability of penile erection and does not involve sexual desire disorders, ejaculation or orgasm. For determining the existence of erectile dysfunction, the condition must last for at least three months.

Types of erectile dysfunction
Erectile function involved in various physical and psychological factors, so altering one or more factors may lead to erectile dysfunction. We can classify into three groups:

Organic: it may be secondary to vascular lesions (most often 60-80%), neurological (10-20%), hormonal (5-10%) or local.
Psychogenic: because erectile dysfunction mechanism without injury.
Mixed: due to the combination of organic and psychological factors.
Who is affected
Erectile dysfunction is a health problem with high prevalence among men older than 40 years and has a significant impact on the quality of life of affected male as well as your partner.
The assessment of male sexual dysfunctions in Western society, and perhaps especially in urban areas has increased dramatically in recent years.
Until recently, it just had epidemiological data on erectile dysfunction, due to the scarcity of research on the matter, and the fact that many patients and health professionals find it embarrassing treat problems of a sexual nature during the consultation.
Moreover, the recent availability of oral drugs with good efficacy and safety profile for the treatment of erectile dysfunction, has transformed the diagnosis and treatment of this problem.
A study in the United States between 1290 men, aged between 40 and 70 years, estimated that the overall prevalence was 52%.
The EDEM study (Epidemiology of Male Erectile Dysfunction), held in 2,476 Spanish men, aged between 25 and 70 years, found some degree of erectile dysfunction in 12.1%. The prevalence in Spain is estimated at between 1.5 to 2 million of men.