Being unable to have or keep an erection adequate for sexual activity is the defining mark of erectile dysfunction. The problem may manifest itself in several ways. If the dysfunction:
Is transient or appearing only occasionally, the problem is not likely to be serious; all men experience problems with erections at some time in their lives.
Develops gradually and persistently, there is probably a physical cause; this is generally the case with chronic impotence.
American Urological Association 1000 Corporate Boulevard Linthicum, MD 21090 Toll Free U.S. only: 1-866-RING AUA (1-866-746-4282) Phone: 410-689-3700 Fax: 410-689-3800 www.auanet.org
National Institute of Diabetes and Digestive and Kidney Diseases Office of Communications and Public Liaison NIH, Building 31, room 9A04 Center Drive, MSC 2560 Bethesda, Md. 20892-2560 www.niddk.nih.gov
The American Association of Sex Educators, Counselors, and Therapists (AASECT) 1444 I Street NW, Suite 700 Washington, D.C. 20005