Impotence Impotence Impotence is when a man has difficulty gaining or keeping an erection sufficient for intercourse.
Most men have erection problems at times.
But for some, a problem can become chronic. An erection is the result of complex psychological and physical changes. The penis is made up of spongy tissue filled with blood vessels. When stimulated, the blood vessels relax, bringing more blood to the penis and causing an erection. If the penis does not get enough blood flow, an erection will not occur.