Because blood vessel problems are the leading cause of erectile dysfunction, erections have been described as a useful barometer for a man’s overall health. The American Heart Association urges that physicians screen for cardiovascular risks in patients who have erectile dysfunction, even if no other risk factors are present; the onset of ED can precede cardiac events by two to five years.
Diabetes can cause nerve, blood vessel, and muscle damage that results in problems like pain, numbing or loss of sensation in the hands and feet.12 These issues can also result in ED problems, because nerve signals and blood flow are necessary to the process of getting an erection.6 And as men with diabetes get older, ED problems become even more common.13
There are risks to prosthetic surgery and patients are counselled before the procedure. If there is a post-operative infection, the implant will likely be removed. The devices are reliable, but in the case of mechanical malfunction, the device or a part of the device will need to be replaced surgically. If a penile prosthesis is removed, other non-surgical treatments may no longer work.
The vacuum device creates a vacuum to pull blood into the penis. Unlike a normal erection, the inflow of blood does not continue once the individual removes the vacuum device. The rubber band placed at the base of the penis constricts the penis to prevent the blood from leaving the penis. As there is no inflow or outflow of blood when the rubber band is in place, it is uncommon for the tip of the penis (the glans) to appear a little blue and the penis to be cooler. Once intercourse is completed, the individual removes the rubber band and the blood drains out of the penis.
Supplements are popular and often cheaper than prescription drugs for ED. However, supplements have not been tested to see how well they work or if they are a safe treatment for ED. Patients should know that many over-the-counter drugs have been found on drug testing to have ‘bootlegged' PDE 5 Inhibitors as their main ingredient. The amounts of Viagra, Cialis, Levitra or Stendra that may be in these supplements is not under quality control and may differ from pill to pill. The FDA has issued consumer warnings and alerts.
In regard to circulation, alcohol causes the blood vessels to dilate, which influences the way the blood moves in and out of the penis. A good blood flow regulates the relaxation and contraction of the penis, so it can get and maintain an erection. Without it, no matter how much you may want it to happen differently, your penis will simply remain flaccid.
"Stress and anxiety can adversely affect sexual performance and are common causes of erectile dysfunction,” warns Feloney. “Feelings of stress and anxiety can also lead to depression and a loss of interest in sex." It's important to get these feelings out in the open where you can deal with them. Issues that can lead to erectile dysfunction include fear from previous bad experiences with sex, family or work related stress, poor communication with your partner, and unrealistic goals and expectations.
With an inflatable implant, fluid-filled cylinders are placed lengthwise in the penis. Tubing joins these cylinders to a pump placed inside the scrotum (between the testicles). When the pump is engaged, pressure in the cylinders inflate the penis and makes it stiff. Inflatable implants make a normal looking erection and are natural feeling for your partner. Your surgeon may suggest a lubricant for your partner. With the implant, men can control firmness and, sometimes, the size of the erection. Implants allows a couple to be spontaneously intimate. There is generally no change to a man's feeling or orgasm.
Erections are neurovascular events, meaning that nerves and blood vessels (arteries and veins) are involved in the process of an erection and all must work properly to develop a hard erection that lasts long enough. Erection begins with sexual stimulation. Sexual stimulation can be tactile (for example, by a partner touching the penis or by masturbation) or mental (for example, by having sexual fantasies, viewing porn). Sexual stimulation or sexual arousal causes the nerves going to the penis to release a chemical, nitric oxide. Nitric oxide increases the production of another chemical, cyclic GMP (cGMP), in the muscle of the corpora cavernosa. The cGMP causes the muscles of the corpora cavernosa to relax, and this allows more blood to flow into the penis. The incoming blood fills the corpora cavernosa, making the penis expand.
Hormonal disorders, such as low testosterone, may contribute to ED. Another possible hormonal cause of ED is increased production of prolactin, a hormone produced by the pituitary gland. Additionally, an abnormally high or low thyroid hormone level can result in ED. Young men who use steroids to help build muscle mass are also at a higher risk for ED.
Another common reason for failures of oral therapy is the absence of sexual or genital stimulation prior to attempting sexual intercourse. These medicines facilitate an erection by increasing blood flow to the penis, but they do not act as an aphrodisiac or as an initiator of the erection. A man who is not “in the mood” or does not have adequate physical stimulation will not respond with an erection.
The common PDE5 inhibitor drugs approved in the United States are sildenafil (Viagra), vardenafil (Levitra and Staxyn, the generic form), tadalafil (Cialis), or avanafil (Stendra). All of the currently approved PDE5 inhibitors work in the same way. They differ in the number of available doses, how quickly they work and last in your system, the dosing, and to some extent in the side effects. However, they generally share the same indications and contraindications. Currently, tadalafil is the only medication that patients can take on a daily basis and is approved for the treatment of both ED and BPH (benign enlargement of the prostate).
It’s important to make mention that ED can be associated with stress, hormones, emotional well-being, the nervous system, muscle tone, circulation, medications, and more. While there may be a simple explanation for the inability to maintain an erection, sexual arousal is a complex function of the body, so it’s in your best interest to consult with your doctor if you’re regularly having trouble sustaining an erection and having pleasurable sex.
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Accurate statistics are lacking on how many men are affected by the condition because it is often underreported, but it is estimated that about half of men over 40 in Canada have frequent problems achieving or maintaining an erection. The number of men suffering from erectile dysfunction increases with age, but it is not considered a normal part of aging. The majority of cases can be successfully treated.
The association between psychiatric conditions and sexual dysfunctions, including ED, is well known. Data from population-based studies demonstrate a cross-sectional association between depressive symptoms and ED (65-68) and, among men seeking medical care for ED, depression is significantly associated with a greater severity of the impairment in erectile function (69,70). A meta-analysis of the available prospective studies has shown the role of depression as a significant risk factor for development of ED (71). However, the relationship seems to be bidirectional, as also ED has been associated with the occurrence of depression (72). In addition, treatment with PDE5i is related with an improvement in depressive symptoms (72). Most of this evidence comes from studies not specifically designed for the assessment of this relationship in younger men. However, few studies available in younger populations seem to confirm these results. In an internet-based survey, involving more than 800 North American medical students with a mean age of 25.7 years, ED was reported by 13% of them and it showed a significant association with depressive symptoms, whose frequency got higher as a function of ED severity (73). In a population of more than 2,500 very young Swiss men, aged 18–25 years, participating to a survey on sexual function while attending the medical screening for the evaluation of military capability, ED had a prevalence of 30%. Among the possible correlated conditions, mental health showed an independent association, besides the use of medications without medical prescription, a shorter sexual lifespan and impaired physical health (74). The results from this Swiss study were then prospectively extended on a sample of 3,700 men evaluated at baseline and 15.5 months later (75). Among a number of different possible predictors, including life-style, drug abuse, perceived physical fitness and BMI, only perceived impairment in mental health and depression, either newly occurred or continuously present, were associated with both persistence and development of ED (75). In a retrospective population-based study from Finland, involving almost 3,500 men aged 18–48 years, the role of depression as a significant predictor for ED was confirmed, but this study also showed that anxiety plays a significant role and that ED is significantly less frequent in men with a longer lasting sexual life, thus underlining the positive role of sexual experience and self-confidence (76). Anxiety is often involved in the pathogenesis of ED at the beginning of sexual life. In fact, anxiety can lead to an excessive focus on quality of erection, thus providing a cognitive distraction that negatively affects the arousal and consequently the erection itself (77-79). On the other hand, anxiety can result from one or more sexual failures, with loss of sexual confidence, increasing fears and avoidance for sexual experiences that, in the end, lead to an increased probability of new failures, thus creating a vicious circle (77). Cognitive distraction could be also provided by excessive worry for physical, and in particular genital, self-image. In fact, it has been proposed that when most mental energy is focused on monitoring body, psychological resources are distracted from sex, resulting in an impaired functioning (80,81). In line with this cognitive explanation, a recent study conducted on 367 military personnel younger than 40 years showed that a deteriorated genital self-image is associated with sexual anxiety which, in turn, is associated with a higher probability of sexual dysfunction (82).
Venous leak occurs when veins are unable to keep enough blood in the penis for a suitable erection. As noted above, a firm erection results when blood flows into the penis. Veins normally constrict to keep the blood inside until the man ejaculates. A venous leak prevents blood from staying in the penis. Instead, blood leaks back into the body and the erection fails to stay rigid.