Tag Archives: Sperm motility

Twenty factors that affect male fertility

English: Electron microscope image of sperm.
Sperm entering egg. (Photo credit: Wikipedia)

With so much sperm per ejaculate, it seems that sperm quality would hardly matter in infertility. A healthy male discharges 50 million sperm in one ejaculation. During sexual intercourse, of all those millions of sperm, only a couple hundred will make it to a mature egg that is ready to be fertilized. But 40% of infertility is from the male, including males who passed the semen analysis tests.  The average sperm count today is between 20 and 40 million per milliliter in the Western world, having decreased by 1-2% per year from Continue reading Twenty factors that affect male fertility

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