有(you)排卵(luan)為什(shen)么(me)不懷孕(yun)(yun)(yun)，對(dui)于大(da)多數人(ren)來說(shuo)，懷孕(yun)(yun)(yun)是(shi)(shi)(shi)很容(rong)易的(de)事情，然而有(you)些人(ren)卻是(shi)(shi)(shi)懷孕(yun)(yun)(yun)困難(nan)。即便(bian)是(shi)(shi)(shi)有(you)排卵(luan)的(de)時候，也是(shi)(shi)(shi)很難(nan)懷孕(yun)(yun)(yun)，這是(shi)(shi)(shi)什(shen)么(me)原因導致的(de)呢?

1、卵(luan)巢(chao)(chao)因素(su)：卵(luan)巢(chao)(chao)因素(su)引起的不懷孕占15%～25%，如先天(tian)性無卵(luan)巢(chao)(chao)或幼(you)稚(zhi)型卵(luan)巢(chao)(chao)卵(luan)巢(chao)(chao)功能(neng)早衰、多囊卵(luan)巢(chao)(chao)、某些卵(luan)巢(chao)(chao)腫瘤(liu)等都(dou)可影(ying)響(xiang)卵(luan)巢(chao)(chao)激素(su)分(fen)泌及排(pai)卵(luan)。

2、中樞性的影響：丘腦下部垂體、卵(luan)巢(chao)間內分泌平衡失(shi)調(diao)，垂體腫(zhong)瘤或瘢痕(hen)都可(ke)以(yi)引起卵(luan)巢(chao)功(gong)能失(shi)調(diao)而致不(bu)孕;精(jing)神因(yin)素如(ru)精(jing)神緊或過度(du)焦(jiao)慮可(ke)對丘腦下部――腦垂體――卵(luan)巢(chao)軸產生影響抑(yi)制排卵(luan)。

3、輸卵(luan)管(guan)因(yin)素：女(nv)性不懷孕跟輸卵(luan)管(guan)是有一定關系的。因(yin)為如(ru)果輸卵(luan)管(guan)堵(du)塞的話(hua)，就會導(dao)致精(jing)子與卵(luan)子無(wu)法(fa)相遇，因(yin)此而導(dao)致女(nv)性無(wu)法(fa)懷孕。

4、全身(shen)性疾(ji)(ji)病：全身(shen)性疾(ji)(ji)患如重(zhong)度營養(yang)不(bu)良或(huo)飲(yin)食中缺乏(fa)某些重(zhong)要的營養(yang)因(yin)素，都可(ke)影響卵巢功能(neng)(neng)而(er)致不(bu)孕;慢性疾(ji)(ji)病、代謝(xie)病如甲狀腺(xian)功能(neng)(neng)低下或(huo)亢進糖尿病、腎上腺(xian)功能(neng)(neng)紊亂等(deng)也(ye)能(neng)(neng)導致不(bu)孕。

5、子(zi)宮(gong)頸因(yin)素：女性有排(pai)卵不(bu)懷孕(yun)也有可能是子(zi)宮(gong)頸疾病因(yin)素所致。它是不(bu)孕(yun)癥較(jiao)為重要的原(yuan)因(yin)，約占不(bu)孕(yun)癥的10%～20%。由于慢性宮(gong)頸炎(yan)或雌(ci)激素水平低(di)落，子(zi)宮(gong)頸粘(zhan)液(ye)可變粘(zhan)稠(chou)或含有大(da)量白細(xi)胞(bao)，不(bu)利于精(jing)子(zi)的活動和通過，可影(ying)響(xiang)受孕(yun)此外，子(zi)宮(gong)頸息肉或子(zi)宮(gong)頸肌瘤能堵塞子(zi)宮(gong)頸管，影(ying)響(xiang)精(jing)子(zi)的通過子(zi)宮(gong)頸口狹窄也可能是不(bu)孕(yun)的原(yuan)因(yin)。

6、外陰(yin)陰(yin)道(dao)因素：如無處女膜陰(yin)道(dao)橫隔、先天性無陰(yin)道(dao)等(deng)先天畸形，能妨礙夫妻生活;陰(yin)道(dao)炎癥時(shi)大量白(bai)細胞(bao)能吞精子，降低精子活動力，縮(suo)短其生存時(shi)間而(er)影響受(shou)孕

7、子宮(gong)(gong)(gong)(gong)(gong)(gong)因素：子宮(gong)(gong)(gong)(gong)(gong)(gong)因素所致的(de)(de)不(bu)孕約占不(bu)孕癥的(de)(de)10%～15%正常(chang)子宮(gong)(gong)(gong)(gong)(gong)(gong)前傾(qing)前屈(qu)(qu)、子宮(gong)(gong)(gong)(gong)(gong)(gong)頸口向后(hou)，夫(fu)妻(qi)生活后(hou)子宮(gong)(gong)(gong)(gong)(gong)(gong)頸口浸(jin)泡在精液中有(you)利于(yu)受孕。如子宮(gong)(gong)(gong)(gong)(gong)(gong)后(hou)傾(qing)后(hou)屈(qu)(qu)，使子宮(gong)(gong)(gong)(gong)(gong)(gong)頸口向前向上可(ke)影(ying)響受孕;由(you)于(yu)卵巢孕酮分泌(mi)不(bu)足，使子宮(gong)(gong)(gong)(gong)(gong)(gong)內(nei)膜(mo)分泌(mi)反應不(bu)良;子宮(gong)(gong)(gong)(gong)(gong)(gong)發育不(bu)全以(yi)及子宮(gong)(gong)(gong)(gong)(gong)(gong)內(nei)膜(mo)炎癥如結核(he)性(xing)子宮(gong)(gong)(gong)(gong)(gong)(gong)內(nei)膜(mo)炎，粘膜(mo)下子宮(gong)(gong)(gong)(gong)(gong)(gong)肌瘤等都(dou)可(ke)影(ying)響孕卵著床。

8、其(qi)他因素(su)：經系(xi)統(tong)檢查后尚有10%左右的(de)男女雙(shuang)方均未發(fa)現(xian)明顯不孕原(yuan)因，近年來認為與(yu)免疫因素(su)有關。在某(mou)些(xie)不孕婦女的(de)血(xue)清中發(fa)現(xian)含有抗精(jing)子(zi)的(de)抗體(ti)此種抗體(ti)與(yu)精(jing)液能(neng)發(fa)生凝(ning)集反應，這(zhe)些(xie)不孕夫(fu)婦，如用套(tao)套(tao)避孕一(yi)段時間后能(neng)使這(zhe)些(xie)抗體(ti)消失(shi)而妊娠。