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Related Experiment Videos

Scanning electron microscopy of cervical mucus crystallization.

L J Zaneveld, P F Tauber, C Port

    Obstetrics and Gynecology
    |October 1, 1975
    PubMed
    Summary

    Human cervical mucus crystallization patterns change daily throughout the menstrual cycle. Scanning electron microscopy reveals distinct crystal shapes and ferning, aiding in cycle phase evaluation.

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    Area of Science:

    • Reproductive Biology
    • Biomaterials Science
    • Microscopy

    Background:

    • Human cervical mucus exhibits cyclical changes in its physical properties.
    • Crystallization patterns of cervical mucus are influenced by hormonal fluctuations during the menstrual cycle.
    • Understanding these changes is crucial for reproductive health assessments.

    Purpose of the Study:

    • To investigate the dynamic crystallization phenomenon of human cervical mucus.
    • To characterize the morphological changes in cervical mucus crystals and ferning patterns throughout the menstrual cycle.
    • To evaluate the utility of scanning electron microscopy (SEM) in analyzing these microstructural changes.

    Main Methods:

    • Human cervical mucus samples were collected throughout the menstrual cycle.

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  • Scanning electron microscopy (SEM) was employed to visualize and analyze the microstructural features of the mucus.
  • Crystal morphology, conglomerate formation, and ferning patterns were systematically observed and documented.

    • Main Results:

    • Significant daily variations in cervical mucus crystal conformation, conglomerates, and ferning patterns were observed.
    • Two distinct crystal types (columnar and flat) were identified during early and late cycle stages.
    • During the follicular phase, flat crystals transformed into cuboidal shapes, forming groups, rows, and three types of ferning patterns, with one pattern appearing specific to ovulation.
    • These patterns exhibited a reversal during the luteal phase.

    Conclusions:

    • Cervical mucus crystallization is a dynamic process with distinct, cyclical morphological changes.
    • Scanning electron microscopy is a highly effective tool for detailed evaluation of cervical mucus microstructures.
    • The observed ferning patterns may serve as indicators for specific phases of the menstrual cycle, particularly ovulation.