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Updated: Aug 17, 2026

Sperm Collection of Differential Quality Using Density Gradient Centrifugation
Published on: November 29, 2018
[Semen parameters in secondary infertile couples]
D A Bomba-Opoń1, B Grzechocińska, S Fracki
1I Katedry i Kliniki Połoznictwa i Ginekologii AM w Warszawie.
Objective:
The aim of this study was to evaluate sperm values in the group of secondary infertile couples.
Material And Methods:
The material of the study included 35 couples with abortion in anamnesis, 12 couples with delivery in past and 11 couples conceive and deliver during studies. Sperm analysis was performed according to the WHO guidelines.
Results:
Men from couples with abortion in past had significantly higher sperm concentration compare to couples with delivery in past. In other parameters there was no significant differences observed.
Conclusion:
Sperm concentration can be important factor in secondary infertility.
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