Excessive amniotic fluid will have adverse effects on the fetus, such as fetal malformations, fetal distress, preterm labor and other conditions. 1. Fetal malformation: If the amniotic fluid of a pregnant woman is caused by chromosomal abnormality of the fetus, then the fetus may show signs of malformation such as hydrocephalus. 2. Fetal distress: If the amniotic fluid of a pregnant woman is too much and premature rupture of the amniotic fluid occurs, it will cause prolapse of the umbilical cord of the fetus, which will supply insufficient oxygen to the fetus and cause fetal distress. 3. Preterm labor: If the excess amniotic fluid is caused by high blood sugar in pregnant women, it may lead to an increase in the size of the fetus, excessive uterine contractions, and preterm labor. In addition, excessive amniotic fluid will not only affect the fetus, but also have adverse effects on the pregnant woman. When this situation is found, it is necessary to consult a doctor in time and intervene under the doctor’s guidance to promote the health of the fetus and the pregnant woman.