A 32-week amniotic fluid infusion usually requires about 2,000 ml of fluids per day for 5-7 days. Amniotic fluid is mainly composed of fetal urine and is an important appendage of the fetus. Low amniotic fluid will hinder the growth and development of the fetus, and the causes of low amniotic fluid need to be analyzed, and chromosomal screening is needed if necessary to check whether the fetus has chromosomal abnormality or structural abnormality of the urinary system. If a 32-week pregnant woman finds that her amniotic fluid is too low, after excluding chromosomal or urinary system developmental abnormalities, she can first increase the amount of amniotic fluid by drinking more fluids. If the effect is not obvious, you can be hospitalized for infusion treatment. The amount of infusion is generally about 2000ml per day, and after 5-7 consecutive days, the obstetric ultrasound needs to be reviewed to observe the effect of infusion so as to further adjust the amount of infusion. The infusion treatment can effectively increase the blood supply to the fetus, thus increasing the amniotic fluid volume.