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孕吐結(jié)束是突然的嗎　孕吐結(jié)束前有什么征兆

出處：媽媽育兒網(wǎng) 日期：2018-02-04 20:54:27 編輯：婧待花開

懷孕早期，大多數(shù)的孕婦都會(huì)出現(xiàn)孕吐的現(xiàn)象。孕吐是早孕反應(yīng)的表現(xiàn)之一，是懷孕初期大多數(shù)孕婦會(huì)遇到的情況。所不同的是，每個(gè)孕婦的體質(zhì)不同，孕吐的嚴(yán)重程度會(huì)有所區(qū)別罷了。事實(shí)上，孕吐是正常的妊娠現(xiàn)象，它更是胎兒的一種安全訊息，是胎兒的一種自我保護(hù)能力。

從某種程度上來講，孕早期的妊娠反應(yīng)越嚴(yán)重，孕吐越厲害，孕婦流產(chǎn)的可能性就會(huì)越小。有許多孕婦很疑惑，她們不清楚，孕吐結(jié)束是不是突然的，孕吐結(jié)束前有什么征兆，孕吐的嚴(yán)重程度會(huì)影響胎兒?jiǎn)?？關(guān)于孕吐的那些疑惑，一起來下文中尋找答案吧。

孕吐結(jié)束是突然的嗎 孕吐結(jié)束前有什么征兆

孕吐結(jié)束是突然的嗎？

孕吐是早孕反應(yīng)的一種正?，F(xiàn)象，孕吐開始與結(jié)束的時(shí)間也是因人而異的，孕吐結(jié)束是妊娠反應(yīng)的一種偶然與必然的聯(lián)系，大多數(shù)孕婦在懷孕三個(gè)月以后，孕吐的現(xiàn)象就會(huì)逐漸的消失，而有的孕婦也會(huì)在孕中期或后期又反復(fù)出現(xiàn)孕吐現(xiàn)象，總之，孕吐結(jié)束可能是突然的，沒有固定的時(shí)間限制，會(huì)因?yàn)閭€(gè)體的不同而不同。

大部分孕婦都會(huì)經(jīng)歷孕吐，開始妊娠后，大約從懷孕第5周開始（也有更早些開始的）會(huì)發(fā)生孕吐。特別在早晚會(huì)出現(xiàn)惡心，沒有任何原因就發(fā)生嘔吐。

有少數(shù)孕婦早孕反應(yīng)嚴(yán)重，惡心嘔吐頻繁，不能進(jìn)食，嘔吐物除食物外，甚至可能還有血性物或膽汁，影響身體健康，甚至威脅孕婦生命，這被稱之為妊娠劇吐。這樣的話就必須去醫(yī)院進(jìn)行治療了。所以說，每個(gè)女人孕吐的臨床表現(xiàn)差異很大。

專家臨床研究發(fā)現(xiàn)，孕吐開始的時(shí)間是因人而異的，大部分的女性在懷孕后第5周或第6周開始就會(huì)有惡心、嘔吐現(xiàn)象，但也有少部分的女性在懷孕后孕吐現(xiàn)象從頭到尾都不明顯，只是偶爾會(huì)感到有點(diǎn)惡心感。

孕吐的反映從具體時(shí)間來看，一般是在停經(jīng)42天左右出現(xiàn)，最初是惡心，然后伴隨嘔吐現(xiàn)象出現(xiàn)，而且早晚時(shí)間段孕吐的情況尤其嚴(yán)重，通常是沒有任何緣故就會(huì)產(chǎn)生惡心感。

雖然孕吐的感覺的確不太好受，但好在對(duì)大多數(shù)準(zhǔn)媽媽來說，它一般不會(huì)持續(xù)太長時(shí)間。大概有3/4的準(zhǔn)媽媽會(huì)在孕期的頭3個(gè)月里感到惡心，甚至經(jīng)常嘔吐。惡心感通常從懷孕6周左右開始，但也可能早在懷孕4周就已經(jīng)開始了。在此后的1個(gè)多月里，這種癥狀會(huì)越來越嚴(yán)重。

大約有一半的準(zhǔn)媽媽到孕14周時(shí)，就不再感到惡心了。剩下的大多數(shù)人則還需要1個(gè)月左右的時(shí)間，才會(huì)感到惡心癥狀慢慢減退。不過，此后孕吐還有可能會(huì)卷土重來，貫穿你的整個(gè)懷孕期間。

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