The fetal heart rate is too fast during fetal heart monitoring, which is usually a normal physiological phenomenon, but a few cases are related to fetal hypoxia or abnormal heart development, which need to be judged according to the actual situation to determine whether intervention is needed. 1, physiological situation: pregnant women who are hungry, nervous, excited, just after exercise or fetal activity in the mother after monitoring, may make the fetal activity speed up, the heart rate also speed up, can be checked after half an hour; pregnant women If contractions occur during the test, it will also speed up the fetal heart rate, which is usually normal; the fast heart rate caused by the pregnant woman’s fever can also lead to a fast fetal heart rate; 2, fetal hypoxia: if the fetus is hypoxic in utero during pregnancy, the fetal heart will also speed up in the early stage and then slow down, which needs to be monitored regularly to comprehensively assess whether intervention is needed; 3, abnormal fetal heart development: if the fetal heart has an abnormal electrical rhythm, characterized by paroxysmal heartbeat acceleration, which may also cause accelerated fetal heart rate, can be further determined by fetal heart ultrasound. If the fetal heart rate is fast, we need to confirm whether it is a normal physiological condition or caused by abnormalities, we can look for the causes from the above aspects, actively cooperate with the examination and be guided by professional doctors to intervene to help the fetus develop healthily.