Oligohydramnios, when there is insufficient amniotic fluid surrounding the fetus, is a common fetal complication. Low amniotic fluid in the fetus may affect the growth and development of the fetus, and even lead to complications such as miscarriage or premature birth. So, what causes low amniotic fluid in the fetus? Let’s learn more about it below. Placental Dysfunction The placenta is an important link between the fetus and the mother, responsible for transporting nutrients, oxygen and other important substances to the fetus. If the placenta function is abnormal, it will affect the amount of amniotic fluid around the fetus, resulting in less amniotic fluid in the fetus. The causes of abnormal placental function are complex and may be related to maternal malnutrition, smoking during pregnancy, drinking during pregnancy and other factors. Insufficient fetal urine secretion: Fetal urine in the mother\’s body is the main source of amniotic fluid. If the fetus does not secrete enough urine, it will lead to insufficient amniotic fluid around the fetus, which will lead to fetal oligoamniotic fluid. The cause of insufficient fetal urine secretion may be related to factors such as abnormal fetal kidney function and malformations of the fetal urinary system. What causes turbid amniotic fluid? Abnormal fetal development. Abnormal fetal development may also lead to less amniotic fluid in the fetus. For example, the fetal bladder is not fully developed, the fetal kidney function is abnormal, the fetal urinary system malformation, etc. will affect the secretion of fetal urine, resulting in less amniotic fluid in the fetus. Complications during pregnancy: Pregnant women suffering from some diseases during pregnancy, such as high blood pressure, diabetes, anemia, etc., may cause low amniotic fluid in the fetus. These pregnancy complications can affect the function of the placenta, which in turn affects the amount of amniotic fluid surrounding the fetus. In short, fetal oligoamnios is a common fetal complication with complex causes. It should be noted that pregnant women should maintain good living habits during pregnancy, conduct regular pregnancy check-ups, and detect and deal with pregnancy complications in a timely manner to ensure the health of the fetus. At the same time, if pregnant women find that they have low amniotic fluid in their fetuses, they should seek medical treatment promptly and receive professional treatment to protect the health of the mother and baby.