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[Semen characteristics and fertility (author's transl)]
Annales D'Endocrinologie
|October 1, 1981
Summary
Fertile men exhibit superior semen characteristics, including higher sperm concentration and motility, compared to infertile men. Testicular factors significantly impact semen quality, but other causes of infertility persist.
Area of Science:
- Reproductive Medicine
- Andrology
- Urology
Background:
- Semen analysis is crucial for evaluating male fertility.
- Understanding factors influencing semen quality is vital for diagnosing infertility.
Purpose of the Study:
- To compare semen characteristics between fertile and infertile men.
- To investigate the impact of testicular lesions on semen parameters.
Main Methods:
- Analysis of semen volume, sperm concentration, motility, vitality, and morphology.
- Comparison of seminal biochemical markers (fructose, acid phosphatase, citrate, L-carnitine).
- Inclusion of 215 fertile men and 409 infertile men.
Main Results:
- Fertile men showed significantly higher mean values for volume, sperm concentration, and percentages of motile, vital, and morphologically normal spermatozoa.
- Testicular lesions caused greater seminal variations than varicocele.
- Elevated L-carnitine in fertile men correlated with higher sperm concentration.
Conclusions:
- Semen quality differs significantly between fertile and infertile men.
- Testicular factors play a role, but other causes contribute to infertility.
- Epididymal function, indicated by L-carnitine, is linked to sperm concentration.