Experts have classified the causes of erectile dysfunction in young men into different categories, each of which would be detailed in this article.In the medical stream, the condition of erectile dysfunction is also known as impotency. Men affected by this condition lose their ability to get or maintain an erection that is required for sexual needs. This condition does not always have to be a serious concern, provided it occurs occasionally. However, it's a cause for concern when the condition becomes persistent or let's say chronic. In such cases, it may indicate some serious underlying medical conditions in the body. The different causes of erectile dysfunction in young men have been described below, along with some quick facts on the symptoms, as well.