In the medical evaluation of older men with erectile dysfunction, obta
in a detailed history to determine whether the dysfunction is organic
or psychogenic. Determine if there are underlying pathologic processes
-most notably vascular diseases-or other factors responsible for the d
ysfunction, such as medications or nerve or arterial damage from surge
ry. Lifestyle changes in mid-life (regular exercise, a low-fat diet, a
nd smoking cessation) increase a man's chances of remaining potent as
he grows older. Treatments for impotence include injection therapy, va
c-uum devices, and implants. Each therapy has advantages and disadvant
ages, and the informed patient plays an important role in choosing the
therapy that is right for him.