KnowraAmenorrheaLinked fromLinked fromThe 9 pages that link to Amenorrhea, each with the reason it gives.All 9Related 8Compared with 1Menstrual cycleRelated: Missing periods can signal pregnancy, energy imbalance, illness, or other hormonal changes.MenopauseRelated: Twelve months of amenorrhea, after other causes are considered, establishes natural menopause retrospectively.ProlactinRelated: High prolactin can suppress reproductive hormone signaling and interrupt menstruation.Anorexia nervosaRelated: It may accompany anorexia nervosa, though it is no longer required for diagnosis.AnovulationRelated: Persistent anovulation may present as absent periods, though amenorrhea has other causes.Contraceptive implantRelated: Some implant users stop bleeding, while others experience irregular or prolonged bleeding.Primary ovarian insufficiencyRelated: Absent periods can be one presentation, although irregular bleeding is also common.HyperprolactinaemiaRelated: Prolactin excess may suppress reproductive hormones and stop menstruation.