Fetal heart monitoring to look at the waveform formed by the fetal heart rate and the relationship with contractions can show whether the child is hypoxic or not. Fetal heart monitoring usually lasts 20 to 40 minutes. If during fetal heart monitoring, the baseline fetal heart rate becomes too fast or too slow, the variation is tiny, and problems such as deceleration of the fetal heart occur, it is possible that fetal hypoxia is present. In addition to performing fetal heart monitoring, observation of whether the fetus is experiencing hypoxia can be done by the pregnant woman counting fetal movements. If there is an increase in fetal movement or a decrease in fetal movement that lasts for a period of time, fetal hypoxia may have occurred. In addition to this, other ancillary tests can be done to observe whether fetal hypoxia has occurred by doing an ultrasound biophysical score. If fetal hypoxia is detected during fetal heart rate monitoring, it is recommended that the cause be clarified under the guidance of a doctor in a timely manner, and then targeted treatment can be carried out according to the cause.