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[Physiologic changes in semen examination].

A Spira, B Ducot

    Annales De Biologie Clinique
    |January 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Establishing normal spermogram values is crucial for fertility assessment. This study analyzed 294 samples, providing reference ranges for volume, concentration, motility, and morphology, while noting variability factors.

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    Area of Science:

    • Reproductive Medicine
    • Andrology
    • Clinical Chemistry

    Background:

    • Defining normal spermogram values is essential for accurate male fertility diagnosis.
    • Previous studies have established reference ranges, but variability factors require further consideration.

    Purpose of the Study:

    • To establish reference values for spermogram parameters based on proven fertile men.
    • To identify and analyze factors contributing to variability in spermogram results.

    Main Methods:

    • Analysis of 294 spermograms from proven fertile men (donor candidates, vasectomies).
    • Statistical evaluation of sperm characteristics including volume, concentration, motility, and morphology.
    • Assessment of variability factors: abstinence period, age, and seasonal influences.

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    Main Results:

    • Proposed normal values: volume 1.8 ml, concentration 23 million/ml, total count 72 million, motility 35%, morphology 32%.
    • Most frequent abnormalities: head irregularities and microcephaly.
    • Spermogram values are significantly influenced by abstinence duration, age (post-40), and time of year.

    Conclusions:

    • The study provides updated reference values for spermogram parameters in fertile men.
    • Recognizing variability factors like abstinence, age, and seasonality is critical for accurate interpretation.
    • Repetition of sperm examinations is necessary to account for inter-individual variations before clinical interpretation.