For most people (especially people with mild cases), the cause of polyhydramnios is unknown.
Moderate to severe polyhydramnios could be caused by the following:
- The fetus can’t swallow amniotic fluid due to a congenital disorder.
- High blood glucose levels (caused by diabetes before or after becoming pregnant).
- Carrying identical twins with twin to twin transfusion syndrome (TTTS).
- Differing Rh factor (you’re Rh-negative and the fetus is Rh-positive).
- Complications with the fetal heart rate.
- The fetus has an infection.
How is polyhydramnios treated?
Polyhydramnios is generally not treated if it’s a mild case or if you’re at the end of your pregnancy. Your provider may schedule additional appointments to monitor your condition. In most cases, monitoring your pregnancy closely is the best plan.
Treatment may be needed if you have severe polyhydramnios. In some cases that means treating the underlying condition (like diabetes) causing polyhydramnios. Other treatment options include:
- Draining excess amniotic fluid.
- Inducing labor before your due date, usually between 37 and 39 weeks of pregnancy.
What are the dangers of having polyhydramnios?
Too much amniotic fluid in your uterus puts pressure on your nearby organs and causes pregnancy complications. The condition is usually more serious if it occurs early in pregnancy because there’s more time for amniotic fluid to continue to build up. The excess fluid itself is not harmful to the fetus.
Other complications of too much amniotic fluid include:
- Early labor.
- Premature birth (your baby is born before 37 weeks).
- Placental abruption.
- Postpartum hemorrhage.
- Umbilical cord prolapse.
- The fetus becomes breech.
- Stillbirth.
What can I expect if I have this condition?
People with polyhydramnios may be monitored more closely for the remainder of the pregnancy. You can expect more frequent appointments as well as more ultrasounds to measure amniotic fluid volume.
Your birthing experience shouldn’t be too different than someone without polyhydramnios. Your baby’s heartbeat will be evaluated during labor to make sure they aren’t going through too much stress. You may also pass a large amount of amniotic fluid as you give birth. A pediatrician will evaluate your baby immediately after birth and make sure they’re healthy.
How does polyhydramnios affect my baby?
Mild cases of polyhydramnios shouldn’t affect your baby. In diabetes-related cases, the fetus may grow too large for a vaginal delivery. Severe cases of polyhydramnios may lead to premature labor and your baby being born early. If your pregnancy care provider believes your condition needs treatment, they’ll suggest the best path forward to ensure you and your baby are taken care of.
Can you have a healthy baby with polyhydramnios?
Yes, most people will not have pregnancy complications from too much amniotic fluid and will have a healthy baby.
Will I need a C-section?
You may need a cesarean section (C-section) if your provider believes a vaginal delivery is too risky. Your chances of having a C-section are only slightly increased.
Can I prevent polyhydramnios?
No, you can’t prevent polyhydramnios. If you’ve been diagnosed with gestational diabetes or had diabetes before pregnancy, managing your blood sugar levels is one precaution you can take.
What can I do to help relieve symptoms of polyhydramnios?
If you’re diagnosed with polyhydramnios, you can try to relieve your worries by doing the following:
- Try to find ways to relax.
- Rest for longer periods of time.
- Be open with your healthcare providers about how you envision your labor and birth process progressing, especially if it occurs prematurely.
- Contact your provider if you feel other symptoms occur or if your belly becomes larger quickly.
- Join an online forum to speak to others with similar issues.
When should I see my healthcare provider?
Contact your pregnancy care provider if you have any new symptoms, begin feeling overly full in your belly or notice your abdomen gets bigger suddenly. If your provider diagnoses you with any health condition during pregnancy, it’s very important to attend all your prenatal appointments and ultrasounds. Ask them what you can expect if you have polyhydramnios, so you can call them if you believe your condition is worsening.
