Gestational age and amniotic fluid index comparison table

The amniotic fluid of pregnant women plays an important role in pregnancy. It can protect the fetus and the amniotic membrane surface, prevent deformities caused by adhesions, and enable the fetus to move and grow freely. When the pregnant uterus is impacted or compressed by external force, the amniotic fluid of the pregnant woman can protect the fetus, embryo and umbilical cord from being affected directly. The amniotic fluid of pregnant women can also prevent the movement of the fetus, and directly act on the endometrium to affect the pregnant mother. Since the amniotic fluid of pregnant women is so important, it is necessary to understand its condition. The following is a comparison of the gestational age and the amniotic fluid index.

The amniotic fluid index can be detected by ultrasound equipment, and the normal range is generally 300-2000ml. At 20 weeks of pregnancy, the amniotic fluid flow of the pregnant woman is around 500ml. By the 28th week of pregnancy, the amniotic fluid flow increases by 200ml. Around 32-36 weeks of pregnancy, the amniotic fluid flow of pregnant women increases to 1000-1500ml. Until the middle and late stages of pregnancy, the amniotic fluid of pregnant women will decrease relatively and reach a stable value.

If the amniotic fluid flow of the pregnant mother is within the normal range, it will play an important role in the late pregnancy and when the baby is about to be born, and may even help the pregnant woman to give birth. In the later stages of pregnancy, the gestational sac is formed, the cervical canal is enlarged, and the vagina is lubricated after rupture of the membranes to prevent the strong pressure during contractions from immediately affecting the fetus, embryo and fetal umbilical cord. The embryo is pressed toward the uterus to prevent early detachment. If the amniotic fluid of a pregnant woman does not reach the standard value, is higher or lower than the range, there will be too much or too little amniotic fluid, which will affect the physical and mental health of the fetus.

Pregnant women with diabetes also often have polyhydramnios. Many people think that this is because the sugar in the amniotic fluid stimulates the amniotic membrane, which then secretes a large amount of amniotic fluid. If the amniotic fluid of a pregnant woman increases too much, it will have adverse effects on both the pregnant mother and the fetus. For pregnant women, because the uterus is extremely dilated and the diaphragm is stretched, compression symptoms such as difficulty breathing may occur, which cannot be treated. At the fetal level, it may cause fetal breathing difficulties and increase the risk of fetal death.