Amniocentesis, ultrasound and physical examination can be used to determine whether the amniotic fluid is turbid. In the early stage of pregnancy, amniotic fluid is bright and transparent, showing a light yellow color; with the increase of gestational weeks, the amniotic fluid gradually appeared fetal cui hair, fetal fat and shed epithelial cells and other substances, which can lead to amniotic fluid turbid, opaque, showing a milky white color. 1. Amniocentesis: amniocentesis can be used to check whether the amniotic fluid is contaminated or not, and to observe the color, transparency and texture of the amniotic fluid in order to assess the degree of amniotic fluid contamination. 2. Ultrasonography: To observe whether there are floating objects in the amniotic fluid. However, ultrasonography cannot directly check the color and texture of the amniotic fluid. 3. Physical examination: If there is amniotic fluid flowing out, observe the character of the flowing amniotic fluid. Auscultation will help you to understand the heart and lung function of the fetus, and you can also judge the condition of the fetal heart. If the amniotic fluid is cloudy, please follow the doctor’s instructions to treat the condition and review the condition in time.