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Spermaturia and puberty

J L Pedersen1, K Nysom, M Jørgensen

  • 1Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Denmark.

Archives of Disease in Childhood
|September 1, 1993
PubMed
Summary
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Spermaturia, or sperm in urine, is common in adolescent boys. Its occurrence and pattern vary significantly during puberty, suggesting different mechanisms at play before and after full sexual maturity.

Area of Science:

  • Pediatric Urology
  • Reproductive Endocrinology
  • Human Physiology

Background:

  • Spermaturia, the presence of spermatozoa in urine, is a physiological phenomenon.
  • Understanding its occurrence during puberty is crucial for differentiating normal development from potential pathologies.

Purpose of the Study:

  • To investigate the pattern and prevalence of spermaturia in adolescent boys at different pubertal stages.
  • To explore potential differences in spermaturia mechanisms between early and late puberty.

Main Methods:

  • Collected fractionated 24-hour urine samples over nine consecutive days from two groups of boys (aged 13-14 and 15-17 years).
  • Detected spermatozoa via microscopic examination of urine sediment.
  • Recorded Tanner stages of sexual development.

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Main Results:

  • Spermatozoa were detected in 55% of all urine samples, with all participating boys exhibiting spermaturia.
  • Significant inter-individual and intra-individual variations in spermaturia were observed.
  • Spermaturia was more frequent and consistent in early to mid-puberty compared to more mature stages.

Conclusions:

  • Spermaturia is a common finding throughout puberty in adolescent males.
  • The varying patterns suggest distinct physiological mechanisms underlying spermaturia in early versus late puberty.
  • A continuous, spontaneous flow of spermatozoa to the urethra may explain spermaturia in non-ejaculating boys, contrasting with the peristaltic flow during ejaculation.