Excessive amniotic fluid in late pregnancy may be caused by pregnant women eating too many sweets, fetal physical deformities, placental cord pathology, etc. It can be treated by dietary adjustments, transabdominal amniocentesis and termination of pregnancy. 1. Pregnant women eating too many sweets: If pregnant women often eat fruits with high sugar content, resulting in elevated blood glucose, the fetus’ blood glucose will also be elevated and urination will increase, which will result in excessive amniotic fluid. At this time, pregnant women should adjust their diet and eat less food with high sugar content. Usually, amniotic fluid will return to normal after blood sugar returns to normal. 2. Fetal malformation: If the fetus has digestive and respiratory malformations, the fetus will swallow less amniotic fluid, which will result in excessive amniotic fluid. At this time, the diagnosis should be confirmed by ultrasound, and if it is more serious, the pregnancy can be terminated if necessary. 3. Placenta umbilical cord lesions: such as giant placenta will lead to excessive secretion of amniotic fluid, and excessive amniotic fluid will occur in late pregnancy. At this time, if there is no structural abnormality in the fetus, the pregnant woman should pay attention to rest and closely observe the condition of the fetus; if the pregnant woman realizes that the symptoms are serious, she can release an appropriate amount of amniotic fluid through abdominal amniocentesis. If a pregnant woman has excessive amniotic fluid in late pregnancy, it is recommended that she consult a doctor in a timely manner, under the guidance of the doctor, complete the relevant examinations, identify the cause of the disease and treat the symptoms.