RESUMEN
The female life period in which hormonal share begins to drop and the first menopausal clinical symptoms occur, is called perimenopausal period. During this female life phase, frequently, time of regular function and time of ovarian dysfunctions occur, with a limited luteal phase and an estrogen production fall. So, perimenopausal clinical symptoms begin: hot flushes, tiredness and libido decrease; to these problems, others can be connected to inadequate luteal phase, as breast pain, nervousness and body increase. Therefore, it's possible to affirm that the perimenopause is a particularly delicate period, either because it represents a transient moment to climateric phase, or because it's possible to detect a great hormonal instability, fundamental step for clinical problems. In our investigation we discuss this problem, explain the causes and the possible remedies to delay the onset of symptoms or to treat hormonal perimenopausal modifications.