What is the normal amniotic fluid index at 32 weeks of pregnancy?

Patient's question:

I am very scared when this happens. I often have lower abdominal pain and don't know how to solve it, so I came here for consultation. Could you please tell me what is the normal amniotic fluid index at 32 weeks of pregnancy?

Doctor's answer:

The amniotic fluid index is generally between 8-20, and both excess and deficiency require attention. In normal pregnancy, the volume of amniotic fluid ranges from 500 to 2000 ml. It exists in the amniotic cavity, surrounding the fetus, and appears as anechoic. After 35 weeks of pregnancy, granular echoes or fine short light bands may be present in the amniotic fluid. During measurement, the maximum depth of amniotic fluid can be measured, or the sum of the depths in four quadrants can be obtained to calculate the amniotic fluid index.

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