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孕七个半月头围多少正常
更新时间: 2020-11-05 00:00:00  

一边考虑怀孕7个半月,胎儿双顶径8.1cm,头围30.0cm,股骨长6.0cm。

胎儿头围是指绕头一周的最大长度。常常从前额的鼻根开始测量到后脑的枕骨隆突。怀孕40周时胎儿头围大约34cm,在怀孕20周时,胎儿头围大约18cm,怀孕28周时,胎儿头围大约26cm,怀孕37周时胎儿头围大约32cm,胎儿头围、腹围、双顶径值、股骨长值可以用来判断胎儿宫内发育情况。孕期注意休息,合理膳食,按期产检。

关键词: 半月 多少 正常

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