Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
152 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction
Article Home Women's Health Polyhydramnios or excess of amniotic fluid

Polyhydramnios or excess of amniotic fluid

Polyhydramnios is a medical condition due to excess of amniotic sac. It is seen in 0.5 to 2% of pregnancies. The most common cause is maternal diabetes. It is the term used if the amniotic fluid is 3 times the normal or about 3,000 ml.

Oligohydramnios is a condition in which there is less quantity of amniotic fluid. It is commonly seen in maternal diabetics.

Amniotic fluid is a fluid surrounding the baby to protect the child. The volume of fluid reaches up to 800-1000ml at 36 to 38 weeks. Babies usually swallow the fluid and this is excreted through the kidney.

It is associated with other fetal anomalies like

  • Gastrointestinal abnormalities like esophageal atresia, duodenal atresia, facial cleft, neck masses and tracheoesophageal fistula.
  • Chromosomal abnormalities like Down’s syndrome, Edwards syndrome.
  • Neurological abnormalities like anencephaly.
  • Multiple pregnancy.
  • Chorioangioma of the placenta.
  • Cardiac or kidney problems in mother.
  • Maternal infections with rubella, cytomegalovirus, toxoplasmosis, syphilis.

Symptoms of Polyhydramnios

  • Abdomainl pain.

  • Heartburn.

  • Constipation.
  • Swollen legs.
  • Varicose veins.
  • Large for dates on examaintion.


Polyhydramnios are at risk of other problems like cord prolapse, placental abruption and fetal death.

Tests and diagnosis

  • Abdominal examaintion.
  • Glucose tolerance test, blood sugar level to determine diabetes.
  • Ultrasound scan confirms the diagnosis.


  • Amnioreduction.
  • Low salt diet.