Fetal heart and fetal heart rate are not the same. Fetal heart is the beating of fetal heart, the sound of ejection of blood during the beating of fetal heart is called fetal heart, and fetal heart rate is the frequency of fetal heart beating, normally the fetal heart rate is 110-160 beats per minute. The fetal heart rate is the frequency of the fetal heartbeat, and the normal fetal heart rate is 110-160 beats per minute. The original fetal heart can be checked by ultrasound at about 5 weeks of pregnancy, and the fetal heart can be listened to by Doppler at about 10 weeks of pregnancy. If the fetal heart rate is lower than 110 or higher than 160, it is abnormal, which may be caused by fetal hypoxia in the uterus, and it is better to further monitor the fetal development by ultrasound. If there is hypoxia, you need to take oxygen in time to relieve it. When the fetal heart rate slows down at the time of delivery, it is considered to be due to the decrease of blood supply to the placenta, and if the umbilical cord is wrapped around the neck, it will cause the fetal heart rate to slow down.