According to the nature of the amniotic fluid, the amniotic fluid can be divided into three degrees, the first degree of amniotic fluid contamination is light green, the second degree of amniotic fluid contamination is dark green, the first degree of amniotic fluid contamination, the second degree of amniotic fluid contamination does not necessarily exist fetal hypoxia, need to strengthen monitoring. The third degree amniotic fluid is brownish-green and fetal stool-like. The third degree amniotic fluid contamination indicates that the fetus may be suffering from hypoxia in the womb. It is recommended to terminate the pregnancy by cesarean section, except for those whose uterus has opened wide and can end the labor quickly in the short term.