Effect of time interval between ejaculations on semen parameters

J. H. Check, R. Epstein, R. Long

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


The suggested abstinence period prior to performing a semen analysis has been 2-5 days. If one allows too long of an interval between ejaculates, motility will decrease significantly. This study was designed to evaluate whether any of the semen parameters change with increasing intervals of time between ejaculates and, if so, what parameters are involved. A derived calculation total-live sperm count (product of count/milliliter x volume x percent motility) was significantly lower at 3 days than at 7-, 10-, and 14-day intervals. Sperm count and motility showed a significant decrease at 14 days as compared to 7 days but not to 3 days. There were no significant differences between motility, the hypoosmotic swelling test, velocity, linearity, motile density, or morphology (with strict criteria). The ideal abstinence interval is between 7 and 10 days not 2-3 days, and motility does not appear to significantly decrease with a long interval between ejaculates.

Original languageEnglish (US)
Pages (from-to)93-95
Number of pages3
JournalSystems Biology in Reproductive Medicine
Issue number2
StatePublished - 1991
Externally publishedYes


  • Abstinence period
  • Semen parameters
  • Sperm motility

ASJC Scopus subject areas

  • Reproductive Medicine
  • Urology


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