Fetal heart can help assess the health of the fetus and is still relatively accurate. The normal range of fetal heart rate is 110 to 160 beats/min. Fetal heart can reflect the health of the fetus in the uterus and predict whether the fetus has intrauterine hypoxia, which is more accurate. If the fetal heart is lower than 110 beats/minute, it is a deceleration of the fetal heart. If the fetal heart is higher than 160 beats/minute, the fetal heart rate is too fast. Fetal heart rate that is too fast or too slow indicates that the fetus is abnormal in the uterus and there may be intrauterine hypoxia. Prompt treatment is needed to prevent intrauterine asphyxia and death of the fetus. Usually also need to pay attention to the fetal movement, if the fetal movement suddenly become more frequent or appear to reduce the fetal movement, should go to the hospital in time to check, combined with fetal heart monitoring to assess the condition of the fetus. Pregnant women are advised to undergo regular checkups according to the doctor’s instructions, and to seek prompt medical attention if there is any discomfort, so as to avoid serious consequences.