Clinical use of the turbidimetric analysis of sperm motility: an update

The turbidimetric method of sperm motility analysis provides a quantitative measure of sperm motility. We have previously reported the methodology by which this method is utilized in routine sperm motility determinations in our Male Fertility Clinic. We have recently observed that the motility of sperm in dialyzed seminal plasma is over double the motility in Lopata's medium. This report provides quantitative evidence that the use of dialyzed seminal plasma in the turbidimetric analysis is significantly superior than the use of Lopata's medium.