If the fetal heart rate is too high, the pregnant woman can lie on her left side and inhale oxygen for half an hour, which can generally be relieved, and then recheck again after appropriate activities, the recheck result will usually show that the fetal heart rate is gradually normal, but there is also the possibility that the fetal heart rate is still too high. 1, the fetal heart rate is gradually normal: the fetal heart gradually returns to normal after the pregnant woman rests and inhales oxygen, there is no need to be overly nervous, you can continue to observe, when the fetus is simply too fast fetal heart rate When the fetal heart rate is simply too fast, it may be related to fetal activity or umbilical cord pressure, etc. In the later stages, the fetal movement should be closely observed, and the pregnant woman should also go to the hospital regularly for maternity checkups, and do fetal heart monitoring once a week after 34 weeks of late pregnancy; 2, the fetal heart rate continues to be too fast: the fetal heart rate is generally 110-160 beats per minute, when the fetal heart rate appears to continue to be too fast, to exclude whether the pregnant woman is due to her own heart rate is too fast, or is taking certain drugs that cause the fetal heart to continue to be too fast. If these conditions are excluded and the fetal heart rate is still too fast, in most cases it means that the fetus is suffering from intrauterine hypoxia, and the more abnormal the fetal heart rate is, the more serious the fetal hypoxia is. In this case, you should improve the examination as soon as possible and choose the appropriate treatment.