Fetal heartbeat is the heartbeat of the fetus. Low fetal heartbeat usually means that the fetal heartbeat is lower than normal and does not indicate the sex of the fetus. Fetal heart refers to the heartbeat of the fetus, and generally speaking, its normal range is between 110 and 160 beats/minute. A lower-than-normal fetal heartbeat indicates a slow heartbeat. If the heartbeat is lower than 110 beats per minute, it may be due to the lack of oxygen in the mother’s body, the presence of umbilical cord around the neck, developmental abnormalities, etc., and cannot be used as a basis for determining the sex of the fetus, which means that a lower-than-normal fetal heartbeat does not mean whether it is a boy or a girl. If the fetal heartbeat is lower than normal, women should pay attention to it, and in serious cases, the life of the fetus may be jeopardized. Fetal heart rate is lower than normal, pregnant women should go to the hospital in time, to clarify the cause, under the guidance of the doctor standardized treatment, so as not to affect the health of the fetus.