AmenorrheaMenopauseMenopause, PrematureHypothalamic DiseasesOligomenorrheaPrimary Ovarian InsufficiencyMenstruationGalactorrheaPremenopauseEstrogen Replacement TherapyMenstruation DisturbancesMenstrual CyclePerimenopauseHormone Replacement TherapyAnovulationPostmenopauseFollicle Stimulating HormoneHyperprolactinemiaGonadal Dysgenesis, 46,XYHot FlashesMenorrhagiaOvaryOvarian Function TestsClimactericMenarcheAge FactorsBone DensityEstradiolCerebral AqueductAnorexia NervosaTokyoOvariectomyBreast NeoplasmsAcneiform EruptionsEstrogensHypogonadismOsteoporosis, PostmenopausalEndometrial Ablation TechniquesLuteinizing HormoneReproductive HistoryEmpty Sella SyndromeAnti-Mullerian HormoneWomen's HealthUterine HemorrhagePostpartum PeriodRisk FactorsContraceptives, OralNorpregnadienesHysterectomyVirilismPregnancyHormonesBulimiaInfertility, FemalePolycystic Ovary Syndrome46, XX Disorders of Sex DevelopmentChemotherapy, AdjuvantPituitary DiseasesFertilityBreast Feeding