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Related Experiment Videos

Ovulation detection in the human.

J Kerin

    Clinical Reproduction and Fertility
    |March 1, 1982
    PubMed
    Summary
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    Predicting human ovulation is key for conception planning. While luteinizing hormone (LH) peaks offer a defined marker, clinical signs and ultrasound show promise for more accurate ovulation timing.

    Area of Science:

    • Reproductive endocrinology
    • Biochemical markers of ovulation
    • Clinical prediction of ovulation

    Background:

    • Accurate prediction of human ovulation is crucial for both optimizing and avoiding conception.
    • Current methods rely on endocrine, morphological, and clinical indicators, each with limitations.

    Purpose of the Study:

    • To review the various methods for predicting ovulation.
    • To assess the reliability and accuracy of different biochemical, ultrasound, and clinical markers.

    Main Methods:

    • Review of endocrine markers, including luteinizing hormone (LH), estrogen, and progesterone.
    • Analysis of ultrasound monitoring of follicular development.
    • Evaluation of clinical signs such as cervical mucus, cervical position, and basal body temperature.
    Keywords:
    BiologyBody TemperatureCervical Mucus--analysisCervixEndocrine SystemEstradiol--analysisEstrogensExaminations And DiagnosesGenitaliaGenitalia, FemaleGonadotropinsGonadotropins, PituitaryHormonesLaboratory Examinations And DiagnosesLaboratory ProceduresLuteinizing Hormone--analysisMenstrual CycleMenstruationMetrorrhagiaOvary--changesOvulation DetectionPainPhysiologyProgestational HormonesProgesterone--analysisReproductionUltrasonicsUrogenital SystemUterus

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    Main Results:

    • The luteinizing hormone (LH) peak is a well-defined biochemical marker, showing a significant rise 24-30 hours before ovulation.
    • Estrogen levels rise with follicle development but fluctuate, and progesterone increases just before ovulation.
    • Ultrasound offers linear follicle growth prediction but has a wide diameter range; clinical signs like cervical mucus and pain are useful but variable.
    • Basal body temperature shifts confirm ovulation has passed, not predict it prospectively.

    Conclusions:

    • No single precise and simple marker for human ovulation currently exists.
    • The choice of the most suitable marker depends on individual needs for pre- or post-ovulation timing.
    • Combining multiple indicators may improve prediction accuracy for conception planning.