Amniotic fluid is an essential component that is indispensable to sustain the life of the fetus. Under normal conditions, it is translucent and clear. Some white fetal membranes and fine hair, epithelial cells, etc. can be seen floating in it. At different stages of fetal development, the source of amniotic fluid is different. In early pregnancy, the amniotic fluid comes mainly from the plasma component of the embryo and is colorless. The fetal baby drinks amniotic fluid from the 10th week of gestation onwards. After drinking the amniotic fluid, it passes through the intestines to filter out the floaters, passes through the kidneys to form urine, accumulates in the bladder, and is then excreted through the urethra. And those impurities in the intestine will be excreted after the baby is born, which is meconium. When the fetus excretes meconium into the amniotic fluid, it causes cloudy amniotic fluid, which is contaminated with meconium. However, the factors that cause cloudy amniotic fluid are not only related to meconium, but also related to the accumulation of fetal fat and bile in the amniotic fluid. The main danger of cloudy amniotic fluid for Baoding is that it can easily cause fetal hypoxia. The degree of turbidity of the amniotic fluid varies, causing fetal hypoxia also varies. 1, amniotic fluid I degree of contamination. Amniotic fluid I degree of contamination is manifested as amniotic fluid is light green, common in the fetus chronic hypoxia. 2, amniotic fluid II degree of pollution. Amniotic fluid II degree of contamination manifested as amniotic fluid is dark green or yellow-green, suggesting acute fetal hypoxia. 3, amniotic fluid III degree of contamination. Amniotic fluid III degree of contamination manifested as amniotic fluid is brownish yellow, thick, suggesting severe fetal hypoxia. Cloudy amniotic fluid can usually be found when pregnant women do ultrasound examinations, can see thick, dense light spots. Once the cloudy amniotic fluid appears during the pregnancy test and there is a tendency of fetal hypoxia, it is necessary to administer oxygen as soon as possible to replenish oxygen. Fetal heart rate monitoring should also be performed immediately to see if the fetal heart rate is normal to estimate fetal hypoxia. It is also necessary to adopt the left lateral position and administer oxygen to increase the placental blood supply and relieve the fetal oxygen supply. If the fetal oxygen deficiency is severe, early termination of pregnancy and cesarean section is required to end the delivery. This shows how harmful cloudy amniotic fluid is to the normal development of the baby. It is clear from the source of the amniotic fluid that cloudy amniotic fluid usually occurs after the 10th week of pregnancy.