Is CASA really required? Views from the past, the present and the future The big questions are: Does CASA measure sperm parameters such as motility, morphology, vitality etc. quantitatively, accurately and to what extent does it enhance clinical spermatology for human and animals and wildlife? Does it provide answers not only on [...]
New ventures in our understanding of sperm functionality In 2016 I wrote a blog on standardization of semen analysis in humans but with the emphasis on reviewing sperm motility analysis since the 1600’s until 2016. I showed the importance of standardization of quantitative semen analyses and the power of CASA in assisting [...]
Sperm functionality: Importance in assessing sperm quality, fertilization success and live birth outcome The WHO5 manual (2010) for semen analysis in 2010 sparked a great deal of debate. Perhaps the most important aspects emerging from the debate was that specific “single value” cut-off points are not useful to distinguish between “good and [...]
Hyperactivation of sperm: A very important sperm functional test. Semen quality is traditionally measured by determining sperm concentration, sperm motility,vitality normal sperm morphology and a whole range of other parameters. While these aspects are useful in terms of a record of baseline data it does not necessarily inform us about the functionality of the sperm. [...]
