Amniotic fluid index of 10.5cm is usually normal, and amniotic fluid index of 5-25cm is normal during pregnancy. The amount of amniotic fluid in the uterine cavity will gradually change during pregnancy, the amniotic fluid index is generally between 5-25cm, amniotic fluid index 10.5cm is normal, do not worry too much. At the end of pregnancy, the amniotic fluid index is easy to reduce the phenomenon, the amniotic fluid index is less than 5.0cm for the amniotic fluid is too small, persistent amniotic fluid may cause intrauterine hypoxia of the fetus, the pregnant woman will have frequent fetal movement without rhythmic sensation. Amniotic fluid index greater than 25cm is considered excessive amniotic fluid, the higher the risk of complications of excessive amniotic fluid, there may be fetal malformation, fetal appendage disease. Low amniotic fluid or excessive amniotic fluid is a dangerous situation for both the pregnant woman and the fetus, and any abnormality in the amniotic fluid index should be further examined and treated in the hospital.