<qa>  What is the purpose of this study?The purpose of this study is to determine if elevations in oxidative stress, as measured by oxidation-reduction potential ORP, can distinguish between semen samples from men with abnormal semen parameters from those with normal semen parameters. Static ORP sORP results, measured by the MiOXSYS System- a novel technology, will be compared to the current World Health Organization WHO semen analysis parameters 5th Edition WHO Laboratory Manual for the Examination and Processing of Human Semen 2010. 