Introductory remarks

These discussions will encompass important areas which relate to the pathophysiology of the menstrual cycle. Unfortunately, only a narrow window of the pathology that is associated with the menstrual cycle will be presented. For instance, areas not to be covered include menstrual dysfunction associated with drug abuse, environmental toxins, the effect of systemic illness on the menstrual cycle, the effects of weight and exercise on the menstrual cycle and, finally, genetic abnormalities that are associated with emenstrual dysfunction. The menstrual cycle should be looked upon as an early warning system for signaling that something is wrong, intrinsically or exogenously, with the individual. Hence, it raises a "warning" for a woman during her reproductive lifespan to seek medical help, simply because she may have a systemic illness which is not evident, but from which subsequent problems may arise and for which therapy may be available.