A normal fertile man should hae 30 to 120 sperms per mililitre of semen;60% of it should remain actie after 2 hours and 60% of that should be normally formed for smooth transaction.

• 一个正常生育能力的男子一立方毫升精液中含有3千万到12千万个精子，2小时内60%25精子能够保持活性，活性精子中有60%25能够顺利与卵子结合。