It means the lack of ability to respond properly to sex. It indicates that we are handling the issues that are restricted to the sexual intercourse. It will involve not having the feelings or craving for sex, or not able to uphold an erection for a long time..
The reasons of male sexual dysfunction could be several. They are physical or therapeutic, to emotional or psychosomatic factors. The chief reasons that could cause lack of yearning for sex are-
In such cases when the lack of sexual desire is due to these reasons, the ideal solution is to reach the root cause of the trouble. This could even involve talking to your sex partner, visiting a counselor who deals with such problems when struggling with guilt pangs or any kind of anxiety.