Where does amniotic fluid come from? Amniotic fluid is not ordinary water, It is essential for the normal growth and development of the fetus, And there are also some people about the source of amniotic fluid, It may surprise you to say it, In fact, after entering the second trimester of pregnancy, The main source of amniotic fluid is fetal urine, Another secondary source is fluid secreted by the fetal lungs. In the third trimester of pregnancy, The fetus can produce more than 1000 mL of urine per day, There must be a way out for so much amniotic fluid, Otherwise, it will lead to polyhydramnios. The main way of amniotic fluid absorption is fetal swallowing. To put it bluntly, Read More …