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雙頂徑可不是頭大頭小那么簡(jiǎn)單 揭秘幾個(gè)月看雙頂徑最準(zhǔn)

出處：媽媽育兒網(wǎng) 日期：2017-10-16 14:55:59 編輯：薄荷

男寶寶調(diào)皮好動(dòng)，女寶寶乖巧可愛，無(wú)論男寶寶還是女寶寶，都給一個(gè)家庭帶來(lái)歡樂。懷孕以后，除了惡補(bǔ)各種孕期知識(shí)以外，準(zhǔn)媽媽做的最多的事情大概就是預(yù)測(cè)寶寶的性別了吧。由于現(xiàn)在國(guó)家出于控住男女性別比例的考慮，禁止B超檢查胎兒性別，如果想知道胎兒性別，只能找度娘解決。

網(wǎng)上五花八門預(yù)測(cè)生男生女的方法，準(zhǔn)確率不敢恭維，B超數(shù)據(jù)看男女有科學(xué)依據(jù)嗎?據(jù)說(shuō)從胎兒雙頂就就能看出男女，雙頂徑的大小和胎兒性別真的有關(guān)系嗎？

幾個(gè)月看雙頂徑最準(zhǔn)

幾個(gè)月看雙頂徑最準(zhǔn)

根據(jù)民間說(shuō)法“頭大腿短的是男孩”，就是時(shí)候男胎的特征是頭大腿短，這并無(wú)科學(xué)依據(jù)。

有些胎兒的胎頭偏大，如30周的時(shí)B超顯示的雙頂徑為孕31-32周的標(biāo)準(zhǔn)值，那么雙頂徑和股骨長(zhǎng)的差值很有可能大于2；又如有的胎兒雙頂徑標(biāo)準(zhǔn)符合孕周，但腿的發(fā)育卻跟不上孕周，那么雙頂徑和股骨長(zhǎng)的差值也有可能大于2。

B超中的胎兒股骨長(zhǎng)、腹圍、雙頂徑等數(shù)據(jù)反應(yīng)的是胎兒的發(fā)育情況，從這些數(shù)據(jù)上看從數(shù)據(jù)上看胎兒性別并不科學(xué)。（下頁(yè)：胎兒雙頂徑偏大或偏小怎么辦）

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