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怀孕b超检查孕囊多少正常
更新时间: 2020-11-04 00:00:00  

胎囊是指孕早期胎儿的胚囊。在孕早期通过监测胎囊的位置、形状,可以判断胎儿的发育状况。胎囊一般在孕5周时就能看到;孕6周时,胎囊直径约2厘米;孕10周时约有5厘米。胎囊位置一般在子宫的宫底、前壁、后壁、上部、中部;形状大多为圆形、椭圆形,并且轮廓清晰。如果胎囊在子宫下部过低的位置,并且形状不规则、轮廓模糊难辨,准妈妈还有腹痛或阴道出血的情况,代表胎囊发育异常,可能会流产。

关键词: 怀孕 检查 多少 正常

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