<p>Modern medicine proves that the asphyxia, fetal distress and umbilical cord around neck(25% of pregnant has such situation) will affect the normal growing development of fetal, sometimes there will be dangerous to the fetus, even to the mother, and these</p><p>symptoms will make the fetal heart rate changed abnormally, so the fetal heart range gives an indication of fetal well-being.if conditions permit, pregnant women over 16 weeks are recommended to listen to the fetal heart sound for 1-2 minutes per time, three times per day(within 30 minutes after getting up, within 60 minutes after lunch, and within 30 minutes going to sleep)</p><p><br/></p>

<p>Modern medicine proves that the asphyxia, fetal distress and umbilical cord around neck(25% of pregnant has such situation) will affect the normal growing development of fetal, sometimes there will be dangerous to the fetus, even to the mother, and these</p><p>symptoms will make the fetal heart rate changed abnormally, so the fetal heart range gives an indication of fetal well-being.if conditions permit, pregnant women over 16 weeks are recommended to listen to the fetal heart sound for 1-2 minutes per time, three times per day(within 30 minutes after getting up, within 60 minutes after lunch, and within 30 minutes going to sleep)</p><p><br/></p>