It is the inability to have and maintain an erection sufficient to have a sexual relationship. All men experience occasional sexual dysfunction, but when more frequent or chronic, also known as impotence. As men age, need more stimulation to achieve erection and more time between erections, but impotence is not a consequence of advanced age.
The most common causes of erectile dysfunction are:
4. Cardiovascular Disease
5. Hormonal Disorders
8. Multiple Sclerosis
9. Rectal surgery, prostate or bladder
10. Other neurological
Signs and symptoms
1. Inability to have and maintain an erection sufficient for sexual intercourse.
2. Inability to maintain erection during intercourse.