The fetal heart rate of 156 beats per minute is normal, and the normal fetal heart rate is 110-160 beats per minute. The normal fetal heart rate varies from time to time according to the environment in the uterus. The change of fetal heart rate is a manifestation of the normal regulatory function of the central nervous system and reflects the good condition of the fetus in the uterus. If the fetal heart rate is above 160 beats per minute for more than 10 minutes, the fetus is considered to be suffering from intrauterine hypoxia, which may be caused by the umbilical cord, placenta and amniotic fluid; if the heart rate is below 110 beats per minute, the fetus has a slow heartbeat and needs to be alerted to fetal slow arrhythmia, fetal atrioventricular block and fetal heart development malformation or placental problems. In this case, pregnant women should go to the hospital for fetal heart monitoring and ultrasound to check the fetal heartbeat and fetal movement, and deal with any abnormalities in time. Pregnant women should avoid overexertion during pregnancy, take proper rest and ensure sufficient sleep time in general. In addition, patients can use a fetal heart rate monitor at home to keep an eye on the fetal heart rate to avoid abnormalities.