Diagnosis and medical management of abnormal premenopausal and postmenopausal bleeding.

Abnormal uterine bleeding is a common reason for presentation to health-care providers: it is estimated that one woman in three will present to a care provider with abnormal uterine bleeding (AUB) during the reproductive years, and that at least one woman in 10 will experience postmenopausal bleeding. Although there are some variations in national guidelines for investigation, diagnosis and management of premenopausal AUB, there are far more areas of agreement than disagreement. A comprehensive literature search was undertaken to review national and international guidelines regarding investigation, diagnosis and management of AUB in both premenopausal and postmenopausal women. Areas of controversy are identified, and latest evidence reviewed. Although efforts to reduce hysterectomies for premenopausal AUB through medical management have largely been successful, there are areas where more research is necessary to guide optimal investigation and management. Many countries have well-defined guidelines for investigation and management of premenopausal AUB: there are fewer well-developed guidelines for investigation and management of postmenopausal bleeding. There is a paucity of evidence-based data on management of unscheduled bleeding on menopausal hormone therapy.