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雙頂徑多少是男孩 雙頂徑骨股長(zhǎng)看男女科學(xué)嗎(3)

出處：媽媽育兒網(wǎng) 日期：2018-10-11 19:00:36 編輯：婧子

雙頂徑股骨長(zhǎng)看男女科學(xué)嗎？

我們先來(lái)了解一下關(guān)于雙頂徑的定義，雙頂徑（BPD)說(shuō)簡(jiǎn)單點(diǎn)就是胎兒的胎頭尺寸，也就是指頭部左右兩側(cè)之間最寬部位的長(zhǎng)度，醫(yī)生常常用這個(gè)來(lái)衡量孩子的發(fā)育情況，來(lái)判斷是否能夠順產(chǎn)還是剖腹產(chǎn)。

胎兒的雙頂徑尺寸會(huì)隨著他的成長(zhǎng)而變化，通常懷孕7個(gè)月時(shí)BPD約為7.0厘米；懷孕8個(gè)月時(shí)BPD為8.0厘米；孩子足月時(shí)BPD應(yīng)達(dá)到9.3厘米或以上。

據(jù)醫(yī)生透露利用雙頂徑看胎兒性別是不科學(xué)的做法，通常醫(yī)生是利用雙頂徑的尺寸來(lái)計(jì)算胎兒體重的，計(jì)算公式為：胎兒體重=雙頂徑*900-5200 (克)。

股骨長(zhǎng)(FL)，它是醫(yī)生利用B超查看胎兒發(fā)育情況的常用指標(biāo)，其實(shí)，股骨是人體最大的長(zhǎng)骨，指的就是大腿骨的長(zhǎng)度，通過(guò)股骨長(zhǎng)來(lái)判斷胎兒性別也是不科學(xué)的，醫(yī)生通常也是通過(guò)股骨長(zhǎng)來(lái)判斷胎兒體重和身高的。

由此看來(lái)，雙頂徑和股骨長(zhǎng)都不是判斷胎兒性別的可靠依據(jù)，醫(yī)生通常是利用這兩個(gè)數(shù)據(jù)來(lái)推測(cè)胎兒的體重和身高的哦。

小編的話：懷孕的準(zhǔn)媽媽想要知道腹中胎兒的性別，那是非?？梢岳斫獾氖虑?，且不說(shuō)是不是重男輕女吧，媽媽們提前知道孩子的性別，也好給孩子準(zhǔn)備他的衣物和用品，如果是男孩那就置辦男孩的用品和衣物，如果是女孩那就置辦女孩用的用品和衣物，這樣也不會(huì)造成資源和財(cái)力上的浪費(fèi)。

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