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妊娠的诊断方法颇多,一般书本所载能确诊者只有四种,即听到胎儿心音、触到胎儿轮廓、摄片显示胎儿骨骼以及胎动。胎动又分自动胎动与被动胎动二种。根据文献记载,上述四者出现的时间如下:胎儿心音于妊娠18周、最早于12周、触到胎儿轮廓须在妊娠22周、摄片显示胎儿骨骼须在妊娠15—16周、自动胎动于妊娠22周、最早在妊娠12周、被动胎动于妊娠16周始可能出现。从时间上来看,以胎儿心音及自动胎动
There are many ways to diagnose pregnancy. Generally speaking, there are only four kinds of diagnoses that can be found in books, that is, when you hear the fetal heart sound, you touch the outline of the fetus, the fetus shows fetal bones and fetal movement. Fetal movement is divided into automatic fetal movement and passive fetal movement two. According to the literature, the above four occur as follows: Fetal heart sound in 18 weeks of pregnancy, the earliest in 12 weeks, touching the contours of the fetus to be 22 weeks of gestation, the film shows fetal bones in pregnancy 15-16 weeks, automatic fetal movement in 22 weeks of gestation, as early as 12 weeks of gestation, passive fetal movement may occur at 16 weeks of gestation. From the time point of view, fetal heart sounds and automatic fetal movement