About 300,000 men each year are diagnosed with erectile dysfunction in the United States alone. A third of these men do not respond to the conventional treatment with drugs such as Viagra, Cialis and Levitra. A smaller percentage cannot be prescribed with drugs due to pre-existing medical conditions such as hypertension, diabetes and hyperthyroidism. All [...]

Traumatic Causes.
Trauma or injury to the penis, spinal cord, prostate, bladder, and pelvis can lead to erectile dysfunction by harming nerves, smooth muscles, arteries, and fibrous tissues of the corpora cavernosa. Bicycle riding for long periods has also been implicated as a cause of erectile dysfunction.
Some types of prostate or bladder surgery. Surgery of [...]