Infertility affects about 15% of couples seeking to achieve pregnancy. Many studies have objectified impaired semen quality in recent decades. Indeed, several items about the lifestyle and the environment are likely to act on male fertility. The objective of this study is to analyze these factors, it would be useful to know to allow proper prevention. This is a prospective study of 89 patients spermiograms HMIMV addressed to the microbiology laboratory for various reasons. Conducted over a period of 6 months from 01/10/11 to 01/03/12. Donated were seized and standardized Excel and SPSS exploited. 70.78% of our patients were referred in the balance sheet of more primary and secondary infertility. 66% of them had an abnormal semen analysis. The asthenospermia and oligoasthénospermie are the two main anomalies identified. We observed a higher rate of abnormal semen analyzes was associated with the following: - Age> 40 years. - A history of urogenital diseases. - Toxic habits. - Inadequate eating habits with excessive consumption of coffee, tea, preserves. This crude finding, made these potential male infertility factors. However, based on the statistical analysis of our sample of men studied, it turns out that this association was not significant. At the end of the study, and despite our negative statistical data, we conclude that we can create simple preventive measures to increase the chances of natural conception of a couple. In all cases it is sufficient to lead a healthy life to see her reproductive health improve.