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Polyhydramnios

Medically reviewed by Drugs.com. Last updated on Oct 6, 2024.

What is polyhydramnios?

Polyhydramnios is a condition that causes you to have too much amniotic fluid during pregnancy. This fluid surrounds your unborn baby in the womb. Polyhydramnios is most common in the third trimester.

Why is amniotic fluid important during pregnancy?

Amniotic fluid helps your baby grow and develop normally. The fluid does the following during pregnancy:

What causes polyhydramnios?

Amniotic fluid starts to develop in the womb soon after conception. The fluid contains mainly urine from the unborn baby by the end of the pregnancy. The baby normally swallows amniotic fluid and then urinates. This keeps the fluid level steady throughout pregnancy. The following can cause polyhydramnios:

What are the signs and symptoms of polyhydramnios?

How is polyhydramnios diagnosed?

Your healthcare provider will examine you and ask about your symptoms. Tell him or her if your baby is moving less than usual, or if any fluid leaked from your vagina. Tell him or her about all medicines you are taking. You may need any of the following:

How is polyhydramnios treated?

Mild polyhydramnios may not need to be treated. If it is severe, you may need any of the following:

What can I do to care for myself until delivery?

What are the risks of polyhydramnios?

Your water may break early, and your baby may be born prematurely. He or she may grow more than expected. The placenta may pull away from the womb before delivery. The umbilical cord may drop into your vagina before the baby. This can prevent your baby from getting enough oxygen during delivery. You may need a cesarean section (C-section). You may have heavy bleeding after delivery.

How can I lower my risk for polyhydramnios in a future pregnancy?

You may not be able to prevent polyhydramnios. The following may lower the risk:

When should I seek immediate care?

When should I call my obstetrician?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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