[The effect of frequent ejaculation on semen's parameters in men with inadequate fertility]

The influence of frequent ejaculation on sperm quality in 96 men with oligozoospermia, asthenozoospermia or oligoastenozoospermia was investigated. Ejaculates were produced by each patient in short period of time (4-6 hours). In oligozoospermic group (n = 31) semen characteristics were similar between two ejaculates. In asthenozoospermic group (n = 27) the motility and the total motile sperm count increased significantly in the second ejaculate (32.1% 5.6 vs. 48.0% +/- 7.1 and 36.7 mln +/- 5.6 vs. 47.8 mln +/- 7.6 respectively). Similarly in oligoasthenozoospermic group (n = 38) the motility and the total motile sperm count increased significantly in the second ejaculate (28.1% +/- 5.3 vs. 44.2% +/- 6.2 and 7.1 mln +/- 1.2 vs. 11.3 mln +/- 2.7 respectively). In three groups, pooling two ejaculates increased significantly the total motile sperm count by 58.1%-136.6% comparing to first ejaculate. Pooling two sequential ejaculates from subfertile men is a simple method to increase the quality of sperm for assisted reproduction techniques.