ationVirilizationPubertyGonadarcheTanner scalePubarcheMenarcheSpermarcheAdrenarcheMaternal age / Paternal ageMenopauseEggOvumOvipositionOviparityOvoviviparityViviparyReproductive endocrinologyand infertilityHypothalamic–pituitary–gonadal axisHypothalamic–pituitary–prolactin axisAndrologyHormoneBreastThelarcheDevelopmentLactationBreastfeedingHuman reproductive systemMaleFemaleDiseases and disordersAnorgasmiaDysorgasmiaDyspareuniaErectile dysfunctionHard flaccid syndromePremature ejaculationVaginismusvteඔසප් චක්‍රයEvents and phasesMenstruationFollicular phaseOvulationLuteal phaseLife stagesMenarcheMenopauseTrackingSignsBasal body temperatureCervical mucusMittelschmerzSystemsFertility awarenessCalendar-based methodsBillings Ovulation MethodCreighton ModelSuppressionExtended cycle combined hormonal contraceptiveLactational amenorrheaDisordersAmenorrheaAnovulationCryptomenorrheaDysmenorrheaHypomenorrheaIrregular menstruationM