Endocrine Features of Menstrual Cycles in Middle and Late Reproductive Age and the Menopausal Transition Classified According to the Staging of Reproductive Aging Workshop (STRAW) Staging System

Abstract

Progression through the STRAW stages is associated with elevations in serum FSH, LH, and estradiol and decreases in luteal phase progesterone. The marked fall in inhibin B and particularly anti-Mullerian hormone indicate that they may be useful in predicting STRAW stage but future analyses of early cycle measurements on larger cohorts are needed to draw predictive conclusions.