Polyhydramnios (Excess Amniotic Fluid)
Too much amniotic fluid, which can cause preterm labor and other complications.
Affects: 1-2% of pregnancies
Overview
Polyhydramnios is excess amniotic fluid surrounding the baby. While fluid is essential for development, too much can cause complications like preterm labor, placental abruption, and cord prolapse.
Mild polyhydramnios often has no cause and resolves on its own. Moderate to severe cases warrant investigation for fetal abnormalities, maternal diabetes, or twin-to-twin transfusion syndrome.
Treatment depends on severity and cause. Mild cases are monitored. Severe cases may require amnioreduction (removing fluid) or early delivery.
🩺 Symptoms
- •Rapidly growing belly
- •Difficulty breathing
- •Swelling in legs and feet
- •Decreased urination
- •Constipation
- •Feeling of abdominal tightness
- •Difficulty feeling fetal movements
- •Uterus measures large for gestational age
🔍 Causes
- →Often no identified cause (idiopathic)
- →Maternal diabetes or gestational diabetes
- →Multiple pregnancy, especially with twin-to-twin transfusion
- →Fetal abnormalities (GI, neurological, chromosomal)
- →Fetal anemia
- →Infections (parvovirus, CMV, toxoplasmosis)
- →Swallowing problems in fetus
- →Fetal heart problems
⚠️ Risk Factors
- •Diabetes or gestational diabetes
- •Multiple pregnancy
- •Birth defects
- •Rh incompatibility
- •Previous pregnancy with polyhydramnios
🔬 Diagnosis
- →Ultrasound measuring amniotic fluid index (AFI)
- →AFI over 24-25cm indicates polyhydramnios
- →Or single deepest pocket over 8cm
- →Glucose tolerance test to check for diabetes
- →Detailed anatomy scan looking for abnormalities
- →Mild, moderate, or severe based on AFI level
💊 Treatment
- ✓Mild: Monitoring with serial ultrasounds
- ✓Moderate to Severe: More frequent monitoring
- ✓Treat underlying cause (control diabetes)
- ✓Medications to decrease amniotic fluid production (indomethacin)
- ✓Amnioreduction (removing excess fluid with needle)
- ✓Early delivery if severe
- ✓Careful monitoring during labor
🛡️ Prevention
- →Control diabetes before and during pregnancy
- →Regular prenatal care
- →Early detection and management
⚠️ Potential Complications
- !Preterm labor and birth
- !Premature rupture of membranes
- !Placental abruption
- !Umbilical cord prolapse
- !Postpartum hemorrhage
- !Malpresentation (breech, transverse)
- !Fetal abnormalities (if present)
- !Maternal breathing difficulties
- !Need for C-section
🚨 When to Call Your Doctor
Contact your healthcare provider immediately if you experience:
- ⚠Rapidly growing belly
- ⚠Difficulty breathing
- ⚠Severe swelling
- ⚠Decreased fetal movement
- ⚠Leaking fluid
- ⚠Contractions
- ⚠Severe abdominal discomfort
Related Conditions
This information is for educational purposes and should not replace medical advice. Always consult your healthcare provider for personalized guidance.