摘要:Menstrual disorders are a major reason for gynaecological consultations worldwide and, unfortunatelythere are many different definitions and classifications of this condition. Clear definitions and terminologyare necessary for scientific literature, particularly for clinicians, and for clinical trials comparing twotreatments. The International Federation of Gynaecology and Obstetrics (FIGO) Menstrual DisordersWorking Group has proposed abandoning the use of one common term, dysfunctional uterine bleeding(DUB), while continuing to use the terms abnormal uterine bleeding (AUB) and heavymenstrual bleeding(HMB). Furthermore, the group issued the PALM-COEIN classification system for menstrual disorders,which has quickly been adopted around the world. The PALM-COEIN system allows clinicians andresearchers to identify and classify women with both AUB and HMB in a systematic manner, providesreliable information for research purposes and for epidemiological and prevalence studies in differentsettings, and supports accurate diagnoses and treatment. Additionally, this classification system is usefulfor selecting treatments appropriate for different stages of women’s reproductive years and for differentpatterns of menstrual bleeding. Among the proposed treatments are the use of combined oralcontraceptives, the levonorgestrel-releasing intrauterine system, tranexamic acid, mefenamic acid, andother nonsteroidal anti-inflammatory drugs (NSAIDs).