![]() In about half of cases, we don’t know what causes polyhydramnios. This test checks how your baby’s heart rate reacts when your baby moves. If you have polyhydramnios, your provider will monitor your condition closely during your pregnancy. Birth defects, including problems with the baby’s bones and genetic conditions.Shoulder dystocia – A birth injury that happens when one or both of a baby’s shoulders get stuck inside the pelvis during labor.Macrosomia – When the baby weighs more than 8 pounds, 13 ounces (4,000 grams) at birth.Prolapsed umbilical cord – When the umbilical cord comes out of the vagina before the baby.Uterine atony – When the uterus becomes stretched out and can’t contract normally.Severe breathing problems during pregnancy.Fetal malposition – When a baby is not in a head-down position and may need to be born via Cesarean section (also called Cesarean birth or C-section).Postpartum hemorrhage – Heavy bleeding after having a baby.Stillbirth – When a baby dies in the womb after 20 weeks of pregnancy.Placental abruption – When the placenta partially or completely peels away from the wall of the uterus before birth.Premature rupture of the membranes (PROM) – When the amniotic sac breaks after 37 weeks of pregnancy but before labor starts.Preterm birth – Birth before 37 weeks of pregnancy.Polyhydramnios may increase the risk of these problems during pregnancy: If your MPV is more than 8 centimeters, you have polyhydramnios.Īsk your provider if you have questions about these measurements. The MPV measures the deepest area of your uterus to check the amniotic fluid level. If your AFI is more than 25 centimeters, you have polyhydramnios. The AFI checks how deep the amniotic fluid is in four areas of your uterus. There are two ways to measure the fluid: amniotic fluid index (AFI) and maximum vertical pocket (MPV). Your health care provider uses ultrasound to measure the amount of amniotic fluid. Having an enlarged vulva (the outer part of the vagina).Swelling in your leg, thigh, hip, ankle or foot.This is because the uterus presses on your organs and lungs. If you have a lot of extra amniotic fluid you may have belly pain and trouble breathing. ![]() Many women with polyhydramnios don’t have symptoms. How do you know if you have polyhydramnios? It’s very important for your baby’s development. Amniotic fluid is the fluid that surrounds your baby while they’re in your body before birth. Polyhydramnios is when you have too much amniotic fluid.
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