Pregnant women are not born with excess amniotic fluid during labor and delivery. The etiology of excessive amniotic fluid has not been fully clarified, and may be related to factors such as fetal structural abnormalities, pregnancy comorbidities and complications. It is recommended that the patient continue to improve the relevant examination to clarify the cause of the disease. Excessive amniotic fluid is not inherent in pregnant women’s labor and delivery examinations. Most of them are related to fetal diseases, multiple pregnancies, placental cord pathology, pregnancy complications and other factors, but the etiology of excessive amniotic fluid has not been completely clarified. It is recommended that patients follow the doctor’s instructions to continue to improve the examination, can be carried out ultrasound, amniotic fluid alpha-fetoprotein measurement, maternal blood glucose examination, maternal blood type examination, fetal chromosomes and other related examinations. If the pregnant woman has obvious symptoms of discomfort during the period, she needs to go to the hospital in time for treatment.