Günther E, Radtke M
Zentralbl Gynakol. 1977;99(5):257-63.
In any case of sterility the andrological examination is absolutely necessary; firstly because 50 per cent of the examined men don't show normospermic ejaculate and secondly because nearly 14 per cent of the examined men are infertil. Fertility of man is normal in hypospermia (20 to 40 mill. spermatozoa per ml); it is decreased in oligospermia (less than 20 mill per ml), but real possible. Even kryptospermia (less than one million spermatozoa per ml) can not be identified absolutely with infertility. Hypokinesis and increase of pathomorphic spermatozoa apparently prevent the opportunity of conceptions. It is doubtful that fructose of spermaplasma is a certain criterion of fertility. Extra-matrimonial conceptions probably often occur, for that reason any statement about fertility of man is inaccurately.
在任何不育病例中，男科检查都是绝对必要的；首先，因为50%接受检查的男性精液中精子数量未达正常标准，其次，因为近14%接受检查的男性不育。男性在精子减少症（每毫升2000万至4000万个精子）时生育能力正常；在少精子症（每毫升少于2000万个）时生育能力下降，但仍有可能生育。即使是隐匿精子症（每毫升少于100万个精子）也不能绝对等同于不育。精子活力低下和畸形精子数量增加显然会妨碍受孕机会。精浆中的果糖是否为生育能力的特定标准尚不确定。婚外受孕可能经常发生，因此任何关于男性生育能力的说法都不准确。
