Es la incapacidad del varón para obtener o mantener una erección suficiente y realizar un coito satisfactorio. La DE es una situación muy frecuente; se ha calculado que afecta en mayor o menor grado a la mitad de los hombres entre los 40 y los 70 años. Pero no es un tema que se trate abiertamente, pues forma parte de la vida íntima de los individuos y de las parejas. Mitos y expectativas culturales de la sexualidad masculina han impedido a muchos varones buscar ayuda para un trastorno que puede beneficiarse, en la mayoría de los casos, de un tratamiento relativamente sencillo.
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. —, "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,, "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
3- Tadalafil (Cialis®) – Presenta como principal particularidad el hecho de que la acción de la droga inicia con apenas 15 minutos, pudiendo durar hasta 36 horas. Esto no significa que el paciente tendrá una erección que dure 36 horas, mas sí que dentro de un intervalo de 36 horas tendrá más facilidad para tener erecciones si existe estímulo sexual.

El sildenafilo: Conocido como Viagra, actúa aumentando el flujo sanguíneo en el pene siempre en presencia de estimulación sexual. Debe tomarse una hora antes de empezar la actividad sexual y  su efecto dura hasta 5 horas. Puede provocar efectos secundarios como dolor de cabeza, sofocos, trastornos gastrointestinales o visuales. No pueden tomarla hombres que sufran retinitis pigmentosa o que estén tomando nitratos (al igual que el resto de tratamientos). Al igual que el vardenafilo, su efecto se puede ver afectado si se consumen alimentos ricos en grasa.
En general, los especialistas en medicina familiar (médicos de cabecera especializados) son, junto a los urólogos, los cardiólogos y los psiquiatras, los mejor formados para la valoración, manejo y tratamiento de la disfunción eréctil. Las principales ventajas que aportan frente a los demás especialistas son la visión integral del paciente, la proximidad, la accesibilidad y la capacidad para la entrevista clínica.
Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
Diabetes is an example of an endocrine disease that can cause a person to experience impotence. Diabetes affects the body’s ability to utilize the hormone insulin. One of the side effects associated with chronic diabetes is nerve damage. This affects penis sensations. Other complications associated with diabetes are impaired blood flow and hormone levels. Both of these factors can contribute to impotence.

Besiroglu H, et al. The relationship between metabolic syndrome, its components, and erectile dysfunction: A systematic review and meta-analysis of observational studies (La relación entre el síndrome metabólico, sus componentes y la disfunción eréctil: revisión sistemática y metaanálisis de estudios observacionales). Journal of Sexual Medicine (Revista de Medicina Sexual). 2015;12:1309.
Aunque primero hay que aclarar qué es la hipertensión arterial, qué es la disfunción eréctil, que también acontece por la diabetes, el colesterol malo -LDL-, el exceso de sal en las comidas, el alcohol, el tabaquismo, las drogas, algunos fármacos o la depresión, y a cuántos varones trae de cabeza, sin contar las repercusiones en las mujeres u hombres con los que se relacionan sexualmente.
A vacuum erection device helps draw blood into the penis by applying negative pressure. This type of device is sometimes referred to as penis pump and may be used just prior to sexual intercourse. Several types of FDA approved vacuum therapy devices are available with a doctor's prescription. When pharmacological methods fail, a purpose-designed external vacuum pump can be used to attain erection, with a separate compression ring fitted to the penis to maintain it. These pumps should be distinguished from other penis pumps (supplied without compression rings) which, rather than being used for temporary treatment of impotence, are claimed to increase penis length if used frequently, or vibrate as an aid to masturbation. More drastically, inflatable or rigid penile implants may be fitted surgically.
Concerns that use of pornography can cause erectile dysfunction[14] have not been substantiated in epidemiological studies according to a 2015 literature review.[15] However, another review and case studies article maintains that use of pornography does indeed cause erectile dysfunction, and critiques the previously described literature review.[16]
There are no formal tests to diagnose erectile dysfunction. Some blood tests are generally done to exclude underlying disease, such as hypogonadism and prolactinoma. Impotence is also related to generally poor physical health, poor dietary habits, obesity, and most specifically cardiovascular disease such as coronary artery disease and peripheral vascular disease. Therefore, a thorough physical examination is helpful, in particular the simple search for a previously undetected groin hernia since it can affect sexual functions in men and is easily curable.[11]
La cavernosometría y la cavernosografía de infusión dinámica (DICC) es una prueba en la que se induce una erección con medicamentos, se mide la capacidad de almacenamiento del pene, se hace una ecografía de las arterias del pene (para medir la presión arterial) y se realiza una radiografía del pene erecto para obtener datos anatómicos precisos. Sólo es necesaria en algunos casos de DE.
Penile erection is managed by two mechanisms: the reflex erection, which is achieved by directly touching the penile shaft, and the psychogenic erection, which is achieved by erotic or emotional stimuli. The former uses the peripheral nerves and the lower parts of the spinal cord, whereas the latter uses the limbic system of the brain. In both cases, an intact neural system is required for a successful and complete erection. Stimulation of the penile shaft by the nervous system leads to the secretion of nitric oxide (NO), which causes the relaxation of smooth muscles of corpora cavernosa (the main erectile tissue of penis), and subsequently penile erection. Additionally, adequate levels of testosterone (produced by the testes) and an intact pituitary gland are required for the development of a healthy erectile system. As can be understood from the mechanisms of a normal erection, impotence may develop due to hormonal deficiency, disorders of the neural system, lack of adequate penile blood supply or psychological problems.[17] Spinal cord injury causes sexual dysfunction including ED. Restriction of blood flow can arise from impaired endothelial function due to the usual causes associated with coronary artery disease, but can also be caused by prolonged exposure to bright light.

Hay una causa común en nuestra sociedad actual que es la “inactividad sexual”. Sin que exista ningún trastorno orgánico ni psicógeno, el individuo, por razones diversas, va distanciando progresivamente su actividad sexual, lo que va a afectar a las distintas fases de la respuesta sexual: deseo, excitación, orgasmo y satisfacción, causando frecuentemente anorgasmia femenina o impotencia masculina.
El doctor Benítez insiste en la importancia de detectar cualquier problema relacionado con la erección, pues en muchos casos suele ser el primer indicio de enfermedades más importantes que pueden estar afectando a la salud del hombre. Por ello, es fundamental ponerse en manos de un experto en salud sexual masculina que estudie el origen e indique el tratamiento a seguir, en el que se indicarán fármacos y también se podrá llevar a cabo la terapia de ondas de choque. Además, será necesario instaurar una serie de hábitos saludables que impliquen modificaciones en la dieta y el abandono de tóxicos.