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Related Experiment Videos

Effect of time interval between ejaculations on semen parameters.

J H Check1, R Epstein, R Long

  • 1Department of Obstetrics and Gynecology, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, Camden.

Archives of Andrology
|September 1, 1991
PubMed
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The ideal interval for semen analysis is 7–10 days, not 2–3 days. Longer abstinence periods do not significantly decrease sperm motility, contrary to common belief, but may affect total live sperm count.

Area of Science:

  • Reproductive Medicine
  • Andrology
  • Semen Analysis

Background:

  • Current recommendations suggest a 2-5 day abstinence period before semen analysis.
  • Prolonged abstinence intervals are often believed to negatively impact sperm motility.

Purpose of the Study:

  • To investigate the impact of varying ejaculation intervals on key semen parameters.
  • To determine the optimal abstinence period for accurate semen analysis.

Main Methods:

  • Semen parameters were analyzed at abstinence intervals of 3, 7, 10, and 14 days.
  • Calculated total live sperm count (sperm count/mL x volume x motility %).
  • Statistical analysis was performed to compare parameters across different intervals.

Main Results:

Related Experiment Videos

  • Total live sperm count was significantly lower at 3 days compared to 7, 10, and 14 days.
  • Sperm count and motility decreased significantly at 14 days versus 7 days.
  • No significant differences were observed in motility, hypoosmotic swelling test, velocity, linearity, motile density, or morphology.

Conclusions:

  • The optimal abstinence interval for semen analysis is between 7 and 10 days.
  • Sperm motility does not significantly decline with longer abstinence periods.
  • Total live sperm count is affected by shorter abstinence intervals (3 days).