The essential feature of the sexual dysfunctions is inhibition in one or more of the phases, including disturbance in the subjective sense of pleasure or desire or in the objective performance. Either type of disturbance can occur alone or in combination. They can be lifelong or acquired, generalized or situational, and result from psychological factors, physiological factors, or combined factors. Sexual disorders can lead to or result from relational problems, and patients invariably develop an increasing fear of failure and self-consciousness about their sexual performance. Sexual dysfunctions are frequently associated with other mental disorders, such as depressive disorders, anxiety disorders and personality disorders etc. Sexual function can be adversely affected by stress of any kind, by emotional disorders, or by ignorance of sexual function and physiology. The dysfunction may be lifelong or acquired that is, it can develop after a period of normal functioning. The dysfunction may be generalized or limited to a specific partner or a certain situation.