What causes amniotic fluid to become turbid?

　　Under normal circumstances, amniotic fluid turbidity can be caused by fetal excretion, polyhydramnios or oligohydramnios, amniotic cavity infection syndrome, fetal intrauterine hypoxia, placental insufficiency, and other factors. The solution depends on the specific cause. Prompt medical attention and treatment according to medical advice are necessary. Details are as follows:

　　1. Fetal excretion: During fetal development, the fetus may defecate within the amniotic fluid, causing meconium particles to suspend in the amniotic fluid, thereby making it turbid. If fetal heart monitoring is normal, no special treatment is required. However, timely oxygen administration and continuous monitoring of fetal heart rate are recommended to ensure fetal well-being.

　　2. Polyhydramnios or oligohydramnios: Excessive amniotic fluid may become diluted and mixed with other substances, causing turbidity; whereas insufficient amniotic fluid may cause excessive concentration of substances within the amniotic fluid, which can also lead to turbidity. Symptoms may be relieved by adjusting the pregnant woman's diet and posture.

　　3. Fetal intrauterine hypoxia: Hypoxia may occur due to maternal or fetal factors, placenta previa, umbilical cord entanglement, and other causes. In a hypoxic state, the fetal anal sphincter relaxes, resulting in meconium excretion and amniotic fluid contamination. Additionally, hypoxia-induced metabolic disturbances can further worsen amniotic fluid turbidity, possibly accompanied by decreased fetal movement. Immediate oxygen administration to the pregnant woman is necessary to increase fetal oxygen supply.

　　4. Amniotic cavity infection syndrome: Amniotic cavity infection syndrome refers to a nonspecific infection of the amniotic cavity, the fetus, and its附属 organs during pregnancy or delivery. Infection leads to increased white blood cells in the amniotic fluid, causing turbidity, which may also be accompanied by elevated body temperature. Anti-infective therapy should be administered according to medical guidance using medications such as potassium penicillin V tablets, cefixime capsules, azithromycin granules, etc.

　　5. Placental insufficiency: When a pregnant woman is of advanced maternal age or suffers from uterine diseases, placental blood supply may decrease during pregnancy, leading to placental insufficiency. Placental insufficiency can affect the normal formation and circulation of amniotic fluid, causing turbidity, and may be accompanied by fetal growth restriction. Medications such as ritodrine hydrochloride injection, magnesium sulfate injection, and atosiban acetate injection may be used under medical guidance to suppress uterine contractions.

　　During treatment, it is important to follow medical advice, take medications on schedule, and adjust lifestyle and dietary habits to promote recovery.

　　References:

　　[1] Yang Huixia, Di Wen. Obstetrics and Gynecology (Ninth Edition) [M]. Beijing: People's Medical Publishing House, 2018.