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胎儿成型需要多少天
更新时间: 2020-11-04 00:00:00  

胎儿成型需要3个月,胎儿发育要在三个月性器官发育成型,到怀孕4个月末就可以分出男女。一般来说怀孕三个月胎儿就成型了,身长大约7.5-9厘米,体重约20克的样子。孕妇在前三个月都很容易流产,必须特别注意,应避免搬运重物或做激烈运动,而家务和外出次数也应尽可能的减少,不可过度劳累,多休息,并保证足够的睡眠。

关键词: 胎儿 成型 需要 多少

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