This document discusses menstrual irregularities and their management. It covers primary amenorrhea which is the absence of menstruation and no follicular maturation or ovulation. It also covers dysfunctional bleeding which can occur due to ovulation but with timing anomalies of bleeding or bleeding anomalies. The document separates menstrual cycle disturbances into categories including primary amenorrhea, dysfunctional bleeding, and discusses timing and bleeding anomalies.