Erectile dysfunction, also known as impotence, is defined as not being able to get or keep an erection firm enough for sex. Remember, occasional erectile dysfunction is not uncommon, but if it’s persistent, erectile dysfunction can be the sign of a more serious health issue, and so you should visit your doctor.Here are 8 surprising causes of erectile dysfunction:High cholesterol. Having a raised cholesterol increases the risk of atherosclerosis where the arteries become narrowed and clogged, resulting in impaired blood flow. When this happens to the arteries in the penis, it can prevent enough blood to create an erection from reaching the penis.Depression. This can cause a lack of interest in sex. See your doctor if this happens to you.Smoking. Smoking causes damage to blood vessels, including those that supply the penis which can result in difficulty in achieving an erection.Cycling. Long hours in the saddle without changing position can cause compression of the perineal nerves and blood vessels, resulting in nerve damage which causes erectile dysfunction. Some saddles are worse than others. If cycling is causing you symptoms of tingling or numbness in your penis, adjust your riding position and take a break.  You might want to look at a different saddle, too. Rodeo riding can have the same effect.Medicines. Erectile dysfunction can be a side-effect of many medicines, including some antipsychotics and antidepressants, cholesterol-lowering medicines, high blood pressure medicines, and epilepsy medicines.Stress. Feelings of stress and anxiety can overflow onto your sex life, and you may find you can’t perform as well as you normally could. 'Performance anxiety' is a common cause of erectile problems.Diabetes. Diabetes raises the risk of erectile dysfunction threefold by its effects on nerves and blood vessels.Peyronie’s disease. This disease causes curvature of the penis due to a hardened area of scar tissue, which results in pain when the man has an erection.If you suffer from erectile dysfunction, don’t be embarrassed – it affects one in 5 men over 40. Remember your doctor can help identify the cause of your erectile dysfunction,  and put you on the path to successful treatment. Read erectile dysfunction – visiting your doctor to find out what to expect when you visit your doctor. Last Reviewed: 18 February 2016 

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The causes of erectile dysfunction include aging, high blood pressure, diabetes mellitus, cigarette smoking, atherosclerosis (hardening of the arteries), depression, nerve or spinal cord damage, medication side effects, alcoholism or other substance (drug) abuse, pelvic surgery including radical prostatectomy, pelvic radiation, penile/perineal/pelvic trauma such as pelvic fracture, Peyronie's disease (a disorder that causes curvature of the penis and sometimes painful erections), and low testosterone levels.
Erectile dysfunction (previously called impotence) is the inability to get or maintain an erection that is sufficient to ensure satisfactory sex for both partners. This problem can cause significant distress for couples. Fortunately more and more men of all ages are seeking help, and treatment for ED has advanced rapidly. The enormous demand for “anti-impotence” drugs suggests that erection problems may be more common than was previously thought. Find out more about the causes and treatment of erectile dysfunction here.
Erectile Dysfunction is usually a condition faced by men over the age of 50, but based on the large number of inquiries on blogs and forums from young men dealing with the symptoms of impotence and over 500 hits to my article  titled “Can Men in Their 20’s and 30’s Have Erectile Dysfunction,”  this demonstrates erectile dysfunction at all ages is a serious issue, and particularly erection problems in young men is a key issue these days. If you are in this age group and are dealing with erectile dysfunction, then you have come to the right place to learn about the issues of erectile dysfunction in young  men.
A full battery of labs was ordered and returned normal. A PCDU was ordered which revealed normal arterial inflow with velocities greater than >40 cm/sec with increased end diastolic velocities suggestive of venous leak. After pharmacologic erection, he developed a partial erection that resolved within 1 minute. This was consistent with a diagnosis of venous leak impotence. Pharmacologic cavernosography was performed and revealed bilateral crural leakage. He underwent infrapubic bilateral crural ligation of the penis, which cured his ED. The patient returned to clinic 6 months later with recurrent impotence. A pharmacologic cavernosography revealed recurrent venous leak. Additional crural ligation via a perineal approach was performed. Two months later he reported normal penile erections, and the result has lasted for more than 5 years. He continues to follow up annually in clinic.
“Sex often feels different for your partner when you experience ED,” warns Dr. Schwarts. “Men may not notice gradual changes to the girth or angle of his erection. But his partner does.” If you or your partner notice a persistent change in your erections that affects your sexual intimacy, you may have erectile dysfunction—even if you’re still able to get an erection.
Penile implants: This treatment involves permanent implantation of flexible rods or similar devices into the penis. Simple versions have the disadvantage of giving the user a permanent erection. The latest (and most expensive) device consists of inflatable rods activated by a tiny pump and switch in the scrotum. Squeezing the scrotum stiffens the penis, whether the person is aroused or not. The penis itself remains flaccid, however, so the diameter and length are usually less than a natural erection, and hardness is lacking, although it's sufficient for intercourse.
Ganio, M. S., Armstrong, L. E., Casa, D. J., & McDermott, B. P. (2011, November 28). Mild dehydration impairs cognitive performance and mood of men [Abstract]. British Journal of Nutrition, 106(10), 1535–1543. https://www.cambridge.org/core/journals/british-journal-of-nutrition/article/mild-dehydration-impairs-cognitive-performance-and-mood-of-men/3388AB36B8DF73E844C9AD19271A75BF#

Can red ginseng help treat erectile dysfunction? Red ginseng is a Korean herb that has been touted as a possible remedy for erectile dysfunction. But how effective is it? In this MNT Knowledge Center article, learn about red ginseng, what it is, what research there is on it treating erectile dysfunction, and other health benefits of this herb. Read now
If the patient reports that PDE 5 inhibitors work poorly or inconsistently, we offer CIS to objectively assess erectile function and to provide diagnostic information. For the CIS, inject bimix (such as papaverine 30 mg/phentolamine 0.5 mg/mL—0.2–0.3 cc) and have the patient compress the injection site for 5 minutes. After 5 minutes, instruct the patient to self-stimulate, then assess his response to injection. One could also combine penile color duplex ultrasound (PCDU) with the CIS. However, PCDU is expensive, may not be covered by the patient’s insurance, and may require increased dosages of pharmacologic agents, such as trimix (papaverine 30 mg/phentolamine 0.5 mg/alprostadil 10 mg–0.5 cc) to obtain complete smooth muscle relaxation. This often requires reversal of erection using phenylephrine after the study. In rare patients who failed to achieve and maintain erection with 0.5 mL of trimix, we may proceed with pharmacologic cavernosography or pharmacologic arteriography depending on the results of PCDU.
ICI therapy often produces a reliable erection, which comes down after 20-30 minutes or with climax. Since the ICI erection is not regulated by your penile nerves, you should not be surprised if the erection lasts after orgasm. The most common side effect of ICI therapy is a prolonged erection. Prolonged erections (>1 hour) can be reversed by a second injection (antidote) in the office.
The vacuum constriction device consists of a vacuum cylinder, various sizes of tension rings, and a vacuum pump, either hand-operated or electric. The penis is placed in a cylinder to which a tension ring is attached. Air is evacuated from the cylinder by means of the pump, creating a vacuum, which produces the erection. The cylinder is removed, leaving the tension ring at the base of the penis to maintain the erection.
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