Nomenclature and endocrinology of menopause and perimenopause.

Abstract

The early and late perimenopausal transition is characterized by changing cycle length as well as by menopausal symptoms in some women, including increasing hot flashes and night sweats. Breast tenderness decreases as women enter the late transition. This review, as part of the clinical reviews on the menopausal woman with comorbidity, covers the endocrine phenomena of perimenopause, terminology and the observed clinical characteristics of the transition. It should be noted that the definitions covering this period vary between publications. The average duration of perimenopause is approximately 5A years. The earliest detectable hormonal change is a fall in ovarian secretion of inhibinA B, w..