Icon image | Photo: Shutterstock In the evaluation of male fertility through the analysis of a semen sample under a microscope, the desired outcome is to see a lot of “good swimmers” among the spermatozoa – although this still says little or nothing about their morphology and inner structure. Thanks to modern technologies, it is
Structure spermatozoon/oocyte | Photo: Shutterstock Egg and sperm cell are of equal importance for the development of the embryo. A closer look at the sperm factor suggests that the assessment of sperm quality followed by the selection of appropriate spermatozoa for the fertilization of the oocyte are important steps on the path towards the much
Icon Image | Photo: Shutterstock Sperm-Check using a smartphone app, ovulation tests, testing of hormone levels using ready-to-use test kits … Fertility tests for self-/home testing are not entirely new, but obviously there are ever more inventive products featuring supposedly greater user friendliness. This, of course, arouses the interest of many men and women. US
[← article overview of the topic-series »Success Rate«] Icon Image | Photo: Shutterstock Of course, patients often ask me about pregnancy rates achieved by our IVF centers. Quite often this question is linked with the notion that the pregnancy rate can provide precise forecasts on the successful outcome of fertility treatment. Actually, a uniform definition
Stress test for spermatozoa
Egg and sperm contribute equally to the successful development of the embryo. Nuclear vacuoles in the sperm head are associated with reduced natural fertility in men. Questions arise about what causes the nuclear vacuolization. Do we, as biologists, even promote the development of vacuoles in the laboratory without knowing?