IMR Press / CEOG / Volume 18 / Issue 1 / pii/1634202943224-124842897

Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 47 Issue 1 (2020). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.

Original Research
Effect of repeated semen ejaculation on sperm quality
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1 Department of Obstetrics and Gynaecology, College of Medicine - Lagos (Nigeria)
Clin. Exp. Obstet. Gynecol. 1991, 18(1), 39–42;
Published: 10 March 1991
Abstract

The semen quality of 21 Medical students who produced sperm by masturbation has been assessed. The mean density of 21 samples examined on the first day was 64,4 millions per millilitre, while that on the third and fifth day of the study period were 52.2 and 50.7 millilitre respectively. This showed a statistically significant difference between the first and the third samples. Another statistically significant difference (P less than 0.5) was demonstrated in the semen volume of the first and third, and the third and fifth samples respectively. Significant differences were, however, not observed in the motility and morphology changes in the group samples. We therefore conclude that even though repeated semen ejaculations on alternate days do affect the density and volume of the semen, the most important overall effect is not such as to impair the potential fertility of the man who has normal initial sperm characteristics.
Keywords
Semen
Repeated ejaculations
Density
Volume
Motility
Morphology
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