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有许多男子看来身强力壮,从无病痛,性功能也正常.却不能生孩子,在给他化验精液时,精液中一个精子也没有.这究竟是怎么一回事呢?众所周知,精子是在睾丸中“制造”的.它首先由老祖宗——精原细胞分裂传代.经过初级精母细胞、次级精母细胞、精子细胞几代,最后才演变成为精子.精子离开睾丸以后,要通过附睾的头、体、尾部、输精管及其壶腹部,然后再与精囊管汇合,经射精管进入尿道排出体外.所以精液中没有精子通常有两类原因:一类是睾丸功能不好,造不出精子;另一类是输精通道阻塞,精子无法排出.前一类中又有遗传学异常、先天性异常、内分泌异常、全身性疾病、放射线或药物影响等因素.后一类中也有先天性畸形、感染、损伤等原因.那么怎样才能在众多的原因中找出真正的病因呢?
There are many men who look strong, pain-free, and normal sexual functions, but can not have children, and when they test him, there is not a spermatozoa in the semen. As we all know, sperm are It is “made” in the testes, first by the division of ancestor-spermatogonia, which passes through primary spermatocytes, secondary spermatocytes, and sperm cells for several generations before finally evolving into sperm. Through the epididymis head, body, tail, vas deferens and ampulla, and then with the seminal vesicle confluence, the ejaculatory duct into the urethra excreted.So semen there are two types of sperm usually do not: one is the testicular dysfunction, made No sperm; the other is the obstruction of the channel obstruction, sperm can not be discharged in the former category there are genetic abnormalities, congenital anomalies, endocrine disorders, systemic diseases, radiation or drug effects and other factors. Congenital malformations, infections, injuries, etc. So how can we find out the real cause in many reasons?