In this episode of the Clinical Chats, host Dr. Kristin Metcalf-Wilson is joined by Dr. Anita Nelson to discuss the critical role of menstrual history as the "fifth vital sign" in reproductive health. Part one of the Managing Common Gynecological Problems series, the conversation provides Title X clinicians with a structured approach to identifying and diagnosing abnormal uterine bleeding (AUB) using modern terminology and the PALM-COEIN system.