The most frequent question asked by men suffering from erectile dysfunction is whether the problem is medical or psychological. It may help to know that it is also the first question a doctor will try to determine. If you are experiencing difficulty maintaining an erection during intercourse, it is always a good idea to get an evaluation from a urologist first. Even when it is clear that there are psychological aspects to the problem, an evaluation by a urologist can find and treat medical problems which may be contributing to impotence.