There is increasing consensus that the present DSM IV-TR (2000) sexual disorders classification, of desire, arousal, orgasm, and pain is unsatisfactory. This differentiation seems neither adequate as a lead for understanding the mechanisms involved in these sexual problems nor appropriate as a guide for selecting the best available treatment options. In this article, we therefore argue that it is important to reconsider the cut-rent conceptualization of sexual dysfunction and to focus on underlying mechanisms when considering the various treatment options. Disrupted (or low) sexual arousal appears to be an active candidate underlying many of the sexual dysfunctions. Various mechanisms may eventually result in disruptions of sexual arousal. ...