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Effects of a short abstinence period on sperm quality in oligozoospermic men

  • Nattaporn Poopaibool (Reproductive Endocrinology and Infertility Unit, Department of Obstetrics & Gynecology) ;
  • Amornrat Tangprasittipap (Office of Research, Academic Affairs and Innovations, Faculty of Medicine, Ramathibodi Hospital, Mahidol University) ;
  • Sukanya Chumchuen (Office of Research, Academic Affairs and Innovations, Faculty of Medicine, Ramathibodi Hospital, Mahidol University) ;
  • Chonthicha Satirapod (Reproductive Endocrinology and Infertility Unit, Department of Obstetrics & Gynecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University) ;
  • Artitaya Singwongsa (Reproductive Endocrinology and Infertility Unit, Department of Obstetrics & Gynecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University)
  • Received : 2023.04.26
  • Accepted : 2023.07.25
  • Published : 2023.12.31

Abstract

Objective: The aim of this study was to compare semen parameters and sperm DNA fragmentation (SDF) and explore the relationship between semen parameters and SDF between 2 and 7 days of abstinence and a short abstinence period (within 4 hours) in oligozoospermic infertile patients. Methods: Two semen samples were collected from infertile oligozoospermic men (n=34) after an abstinence period of 2 to 7 days and within 4 hours, respectively. Sperm parameters were compared between the two abstinence duration groups, including semen volume, sperm concentration, total sperm count, sperm motility, total motile sperm count (TMSC), morphology, and SDF. Results: The semen volume, concentration, and total sperm count were significantly decreased after 4 hours of abstinence than after 2 to 7 days of abstinence, with median differences of 1.2 mL (p<0.001), 2×106/mL (p=0.011), and 9.6×106/ejaculation (p<0.001), respectively. TMSC was significantly lower after a short abstinence, with a median difference of 4.24×106/ejaculate (p<0.001). However, there were no significance differences in the percentage of motility, the SDF, and the percentage of sperm with normal morphology. Interestingly, volume, concentration, total sperm count, sperm motility, and SDF, but not TMSC, exhibited significant linear correlations between the two abstinence groups in univariate regression analysis, except for TMSC. Conclusion: In oligozoospermic men, the volume, concentration, and total sperm count were significantly lower after a short abstinence period, but without adverse effects on sperm motility and SDF.

Keywords

Acknowledgement

We thank the entire Ramathibodi IVF Laboratory staff for their technical assistance.

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