Last updated: September 28, 2023

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Polyhydramnios refers to an excess of amniotic fluid, i.e., more than expected for the gestational age, which causes uterine distention. The etiology is unknown in approximately 70% of cases, but it may be caused by maternal conditions (e.g., diabetes, rhesus incompatibility) or fetal abnormalities (e.g., chromosomal or structural). Diagnostics include physical examination, ultrasound, and blood tests. Management involves antepartum fetal surveillance, amnioreduction if there are severe symptoms , and treatment of the underlying cause. Complications include fetal malposition, umbilical cord prolapse, premature birth, and premature uterine contractions.

Etiologytoggle arrow icon

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Complicationstoggle arrow icon

We list the most important complications. The selection is not exhaustive.

Referencestoggle arrow icon

  1. Taskin S, Pabuccu EG, Kanmaz AG, Kahraman K, Kurtay G. Perinatal outcomes of idiopathic polyhydramnios. Interventional Medicine and Applied Science. 2013; 5 (1): p.21-25.doi: 10.1556/imas.5.2013.1.4 . | Open in Read by QxMD
  2. Sahni M, Ohri A. Meningomyelocele. StatPearls. 2020.
  3. Hamza A, Herr D, Solomayer E, Meyberg-Solomayer G. Polyhydramnios: Causes, Diagnosis and Therapy. Geburtshilfe Frauenheilkd. 2013; 73 (12): p.1241-1246.doi: 10.1055/s-0033-1360163 . | Open in Read by QxMD
  4. Salhan S. Textbook of Obstetrics. JP Medical Ltd ; 2016

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