Best Pract Res Clin Obstet Gynaecol 2017 Apr 1;40:3-22. Epub 2016 Oct 1.
Departments of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles and Kaiser Permanente, Los Angeles Medical Center, USA. Electronic address:
The FIGO systems defining the nomenclature and symptoms of abnormal uterine bleeding (AUB) in the reproductive years (System 1) and the PALM-COEIN classification of causes of AUB (System 2) are designed to facilitate research, education, and the provision of optimum clinical care for affected women. Development of these systems has been the result of a collaborative effort of experts in bench and translational and clinical research from six continents aided by a spectrum of representatives from relevant medical societies, journals, and regulatory bodies. Integral to this development has been a decision to cease the use of poorly defined and inconsistently used terms such as menorrhagia, metrorrhagia, and dysfunctional uterine bleeding, to name a few, and replace them with a set of terms and definitions that are relatively easily understood and translated into the spectrum of languages used by medical providers and patients globally. Read More