Trimester of amniotic fluid on the high side do?

Q: my wife at the time of 5.5 months pregnant b-ultrasonography amniotic fluid index for7cm, said of amniotic fluid on the high side, large fetus, other indicators are normal. Will we do?

A: water sheep will increase with the progress of the pregnancy. To the later period of pregnancy, amniotic fluid can reach 1000~1500ml. Middle and late pregnancy, fetal urine is the major source of the amniotic fluid, the amount of adjustment and volume and balance of absorption. Fetal about 500~1000ml to be swallowed amniotic fluid every 24 hours. Most of the fetal blood circulation with transfer to parent. Fetal surface skin absorption of amniotic fluid in early pregnancy is even more apparent. After the second trimester of pregnancy, fetal epidermal cells gradually angle, absorbing features gradually weakened the amniotic fluid. In addition, the placenta and umbilical cord amniotic epithelial surface will absorb a small amount of amniotic fluid.

Amniotic larger individual differences, if the amniotic fluid than 2000ml, called polyhydramnios, sheep less than 300ml of water, called oligohydramnios. Amniotic fluid available b-ultrasound for observation, but it is only by measuring fetal amniotic fluid around the body to estimate the amount of amniotic fluid, does not accurately measure the amount of amniotic fluid.

Amniotic fluid too much common of causes has: ① Fetal malformation and chromosome exception, as no brain infants, and spinal crack, and digestive road malfor

mation, and abdominal wall defects, and diaphragmatic hernia, congenital malformation and the chromosome exception, as 21-three body, and 18-three body,; ② more fetal pregnancy; ③ mother infants blood type not, fetal hemolytic, and anemia; ④ placenta chorionic vascular tumor; ⑤ pregnancy diabetes. In addition, there is too much unexplained part of amniotic fluid.

When you too many b-mode ultrasound diagnosis of amniotic fluid, carefully exclude any congenital anomalies of the fetus and above reasons. Without exception found, you can observe, don\'t panic, because most of the unknown cause of polyhydramnios. To consider and decide as to how to handle the needs on the basis of the foregoing.

More, please see the parent must read magazine issue 2007 of the pregnancy questions and answers.