Concentration of x y sperm low testosterone. In the case of school teacher and student porn antibodies, either the man begins to see his own sperm as a foreign "threat" or his female partner, whose immune system is supposed to tolerate sperm as non-threatening, begins to lose this tolerance and produces a destructive antibody that may damage the sperm and make it incapable of performing it's egg penetration and fertilization duties.
These reports do not fully agree with our study where no relation was observed between the abnormal karyotype, and sperm motility in these pervious reports.
Treatment of gonadotropin deficiency during the first year of life:
A live sperm cell will "swell" when placed in a solution that is "hypo-osmotic", expanding the cell's volume.
Two studies Rives et al.
X chromosome-bearing sperm after accounting for age, time of evaluation, days of abstinence and overall aneuploidy of the semen sample.
It is one of the most common chromosome abnormalities in men.