有排卵(luan)為什么不懷(huai)孕(yun)，對(dui)于大多數人來(lai)說，懷(huai)孕(yun)是很容易的事情(qing)，然而有些人卻(que)是懷(huai)孕(yun)困難。即(ji)便是有排卵(luan)的時候，也(ye)是很難懷(huai)孕(yun)，這(zhe)是什么原因導致(zhi)的呢(ni)?

1、卵(luan)(luan)(luan)巢(chao)因(yin)素(su)(su)(su)：卵(luan)(luan)(luan)巢(chao)因(yin)素(su)(su)(su)引起的不懷孕占15%～25%，如(ru)先天(tian)性無卵(luan)(luan)(luan)巢(chao)或幼稚型卵(luan)(luan)(luan)巢(chao)卵(luan)(luan)(luan)巢(chao)功能早衰(shuai)、多(duo)囊卵(luan)(luan)(luan)巢(chao)、某些卵(luan)(luan)(luan)巢(chao)腫瘤(liu)等(deng)都可影響(xiang)卵(luan)(luan)(luan)巢(chao)激素(su)(su)(su)分(fen)泌及(ji)排卵(luan)(luan)(luan)。

2、中(zhong)樞(shu)性的影(ying)響：丘腦下部(bu)垂體(ti)(ti)、卵(luan)巢(chao)間內(nei)分泌(mi)平衡失(shi)調，垂體(ti)(ti)腫瘤或瘢痕都可以(yi)引(yin)起卵(luan)巢(chao)功能失(shi)調而致不孕;精(jing)(jing)神(shen)因(yin)素如精(jing)(jing)神(shen)緊(jin)或過度焦慮可對丘腦下部(bu)――腦垂體(ti)(ti)――卵(luan)巢(chao)軸產生影(ying)響抑制(zhi)排卵(luan)。

3、輸(shu)(shu)卵管(guan)因(yin)素：女(nv)性不懷(huai)孕跟輸(shu)(shu)卵管(guan)是有一定關(guan)系的。因(yin)為如果輸(shu)(shu)卵管(guan)堵塞的話，就會導致精(jing)子(zi)與卵子(zi)無(wu)(wu)法(fa)相遇，因(yin)此而導致女(nv)性無(wu)(wu)法(fa)懷(huai)孕。

4、全身(shen)性(xing)(xing)疾病(bing)(bing)：全身(shen)性(xing)(xing)疾患如(ru)重度營養不(bu)良或飲食中(zhong)缺(que)乏某些(xie)重要的營養因素，都可影(ying)響卵巢功(gong)能(neng)而致不(bu)孕(yun);慢性(xing)(xing)疾病(bing)(bing)、代謝病(bing)(bing)如(ru)甲狀腺功(gong)能(neng)低下或亢(kang)進糖(tang)尿(niao)病(bing)(bing)、腎上(shang)腺功(gong)能(neng)紊亂等(deng)也能(neng)導致不(bu)孕(yun)。

5、子(zi)(zi)(zi)(zi)(zi)(zi)宮(gong)頸(jing)因素(su)：女性(xing)有排卵不(bu)(bu)懷(huai)孕(yun)也(ye)有可(ke)能(neng)是(shi)子(zi)(zi)(zi)(zi)(zi)(zi)宮(gong)頸(jing)疾(ji)病因素(su)所致。它是(shi)不(bu)(bu)孕(yun)癥較為重要的(de)原因，約占不(bu)(bu)孕(yun)癥的(de)10%～20%。由于慢性(xing)宮(gong)頸(jing)炎或雌激素(su)水平低落，子(zi)(zi)(zi)(zi)(zi)(zi)宮(gong)頸(jing)粘(zhan)液可(ke)變粘(zhan)稠或含有大量白細(xi)胞，不(bu)(bu)利(li)于精子(zi)(zi)(zi)(zi)(zi)(zi)的(de)活動(dong)和通過，可(ke)影響(xiang)受孕(yun)此外，子(zi)(zi)(zi)(zi)(zi)(zi)宮(gong)頸(jing)息肉或子(zi)(zi)(zi)(zi)(zi)(zi)宮(gong)頸(jing)肌瘤能(neng)堵(du)塞子(zi)(zi)(zi)(zi)(zi)(zi)宮(gong)頸(jing)管，影響(xiang)精子(zi)(zi)(zi)(zi)(zi)(zi)的(de)通過子(zi)(zi)(zi)(zi)(zi)(zi)宮(gong)頸(jing)口(kou)狹(xia)窄也(ye)可(ke)能(neng)是(shi)不(bu)(bu)孕(yun)的(de)原因。

6、外陰(yin)陰(yin)道因素：如無處女(nv)膜陰(yin)道橫隔、先(xian)天性無陰(yin)道等先(xian)天畸(ji)形，能(neng)妨礙夫妻生活;陰(yin)道炎癥時(shi)大量白細胞能(neng)吞精子，降低精子活動力，縮短其生存(cun)時(shi)間而(er)影響受孕

7、子宮(gong)(gong)(gong)(gong)因(yin)素：子宮(gong)(gong)(gong)(gong)因(yin)素所致的不(bu)孕(yun)(yun)約占不(bu)孕(yun)(yun)癥(zheng)的10%～15%正(zheng)常子宮(gong)(gong)(gong)(gong)前傾前屈、子宮(gong)(gong)(gong)(gong)頸口(kou)向(xiang)后，夫妻生活后子宮(gong)(gong)(gong)(gong)頸口(kou)浸(jin)泡在精液中有利(li)于受孕(yun)(yun)。如(ru)子宮(gong)(gong)(gong)(gong)后傾后屈，使子宮(gong)(gong)(gong)(gong)頸口(kou)向(xiang)前向(xiang)上可(ke)(ke)影響(xiang)受孕(yun)(yun);由于卵巢孕(yun)(yun)酮分(fen)泌不(bu)足，使子宮(gong)(gong)(gong)(gong)內膜(mo)(mo)(mo)分(fen)泌反應不(bu)良;子宮(gong)(gong)(gong)(gong)發育不(bu)全以及子宮(gong)(gong)(gong)(gong)內膜(mo)(mo)(mo)炎癥(zheng)如(ru)結核性(xing)子宮(gong)(gong)(gong)(gong)內膜(mo)(mo)(mo)炎，粘膜(mo)(mo)(mo)下(xia)子宮(gong)(gong)(gong)(gong)肌瘤等都可(ke)(ke)影響(xiang)孕(yun)(yun)卵著床。

8、其他因素：經系統檢查后(hou)尚(shang)有(you)10%左右的男女雙方均(jun)未(wei)發現(xian)明(ming)顯不孕(yun)原因，近(jin)年來認(ren)為與(yu)免疫因素有(you)關。在某些不孕(yun)婦(fu)女的血清中發現(xian)含有(you)抗(kang)精子的抗(kang)體此(ci)種(zhong)抗(kang)體與(yu)精液能發生凝集反應，這(zhe)些不孕(yun)夫婦(fu)，如用套(tao)套(tao)避孕(yun)一段時(shi)間(jian)后(hou)能使這(zhe)些抗(kang)體消失而(er)妊(ren)娠。