Why does polyhydramnios cause postpartum hemorrhage

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Polyhydramnios symptoms result from pressure being exerted within the uterus and on nearby organs. Mild polyhydramnios may cause few — if any — signs or symptoms. Severe polyhydramnios may cause:. Your health care provider may also suspect polyhydramnios if your uterus is excessively enlarged and he or she has trouble feeling the baby.

The earlier that polyhydramnios occurs in pregnancy and the greater the amount of excess amniotic fluid, the higher the risk of complications. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.

This content does not have an English version. This content does not have an Arabic version. Overview Polyhydramnios Open pop-up dialog box Close. Polyhydramnios In polyhydramnios, excessive amniotic fluid accumulates in the uterus during pregnancy. Request an Appointment at Mayo Clinic. Share on: Facebook Twitter. Diagnosis is by ultrasonographic measurement of amniotic fluid. Maternal disorders contributing to polyhydramnios are treated. If symptoms are severe or if painful preterm contractions occur, treatment may also include manual reduction of amniotic fluid volume.

Multifetal multiple pregnancy occurs in up to 1 of 30 deliveries. Risk factors for multiple pregnancy include Ovarian stimulation Maternal diabetes Diabetes Mellitus in Pregnancy Pregnancy aggravates preexisting type 1 insulin-dependent and type 2 non—insulin-dependent diabetes but does not appear to exacerbate diabetic retinopathy, nephropathy, or neuropathy Fetal anemia, including hemolytic anemia due to Rh incompatibility Erythroblastosis Fetalis Erythroblastosis fetalis is hemolytic anemia in the fetus or neonate, as erythroblastosis neonatorum caused by transplacental transmission of maternal antibodies to fetal red blood cells Preterm contractions and possibly preterm labor Preterm Labor Labor contractions resulting in cervical change that begins before 37 weeks gestation is considered preterm.

Risk factors include prelabor rupture of membranes, uterine abnormalities, infection Diagnosis is clinical. It can be an obstetric emergency.

Manifestations may include vaginal Fetal malposition Fetal Dystocia Fetal dystocia is abnormal fetal size or position resulting in difficult delivery. Diagnosis is by examination, ultrasonography, or response to augmentation of labor. Treatment is with physical Umbilical cord prolapse Umbilical Cord Prolapse Umbilical cord prolapse is abnormal position of the cord in front of the fetal presenting part, so that the fetus compresses the cord during labor, causing fetal hypoxemia.

The prolapsed umbilical Treatment depends on etiology Risks tend to be proportional to the degree of fluid accumulation and vary with the cause. Other problems eg, low Apgar score, fetal distress, nuchal cord, malpresentation requiring cesarean delivery may occur.

Polyhydramnios is often asymptomatic. Sometimes the uterus is larger than expected for dates. Polyhydramnios is usually suspected based on ultrasonographic findings or uterine size that is larger than expected for dates. However, qualitative estimates of amniotic fluid volume tend to be subjective. So if polyhydramnios is suspected, amniotic fluid should be assessed quantitatively using the AFI.