La DE se puede presentar por alteración de uno o varios de los tres mecanismos responsables de la erección: bloqueo de las arterias; incapacidad de los vasos sanguíneos dentro del pene para almacenar la sangre, o daño en los nervios del pene o del área pelviana. También pueden ser responsables de una DE otras disfunciones fisiológicas, como bajos niveles de hormona masculina (testosterona).
Afrodisíacos y tratamientos alternativos. Los afrodisíacos son sustancias que supuestamente aumentan el impulso, el deseo y el desempeño sexual. La leyenda ha atribuido cualidades afrodisíacas a alimentos como los chiles, el chocolate, el regaliz, la manteca, las anchoas, las ostras y las vieiras. El "Spanish fly" o cantáridas, hecho de escarabajos secos, es el afrodisíaco más "famoso" y es particularmente inútil y nocivo.
In exchange for political impotence, they would be mostly left alone and allowed to get rich. — Paul Mozur, New York Times, "Inside China’s Dystopian Dreams: A.I., Shame and Lots of Cameras," 8 July 2018 Their suspicion is compounded by rumors that the polio vaccine causes impotence, death and, ironically, paralysis. — Meher Ahmad, New York Times, "Pakistan Has Just One New Polio Case, but Isn’t Declaring Victory Yet," 20 May 2018 Fighting back, even as an exercise in impotence, did a lot for McCain. — Alex Horton, Washington Post, "John McCain rebelled at the Naval Academy — and as a POW — long before he was a Senate maverick," 3 May 2018 Feelings of desperation and impotence are being felt throughout Central America, where the lawlessness, endemic poverty and levels of gang violence akin to war zones that have driven so many families from their homes show little signs of abating. — Washington Post, "Violence keeps Central Americans coming to US despite Trump," 21 June 2018 Uruguay's attacking impotence forced Oscar Tabarez to make two changes before the hour mark, with Nahitan Nandez and Giorgian de Arrascaeta replaced by Carlos Sanchez and Cristian Rodriguez. — SI.com, "Egypt 0-1 Uruguay: La Celeste Start With a Win as Gimenez Header Breaks Pharaohs' Hearts," 15 June 2018 It was fueled by physician ignorance and impotence, the habit of looking askance at patients whose symptoms could not be explained, and the arrival in the U.S. of German psychoanalysts who were disciples of Sigmund Freud. — Jim Carrier, STAT, "Lobotomies were once used to treat this gut disease, part of a shameful medical history," 12 June 2018 That signing's top attribute had better be goal-scoring, because the Sounders simply can't sustain with this level of attacking impotence. — Avi Creditor, SI.com, "The MLS XI, Week 14: Don't Hold Your Breath for an MLS Cup Threematch," 4 June 2018 Prostate cancer surgery in particular can have severe results, including incontinence and impotence. — Steven Petrow, Washington Post, "Watching but not treating cancer can be hard. Sometimes it’s the right approach.," 20 May 2018
Entre las causas psíquicas se encuentran el miedo a fallar, la ansiedad, el estrés, la tensión y el nerviosismo. Todas ellas influyen de manera negativa puesto que estimulan la producción de adrenalina por parte del sistema nervioso, que afecta al ritmo cardíaco y disminuye el grosor de las arterias. Como consecuencia de la vasoconstricción que se produce, la circulación de la sangre al pene llega defectuosa. Además, existen casos de causas mixtas donde pueden coexistir las orgánicas y psíquicas.
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