• Kate C. Arnold
  • Caroline J. Flint


Macrosomia is defined as a birth weight over 4000–4500 g and is associated with an increased risk for shoulder dystocia. Women with overt or gestational diabetes are more likely to have macrosomic fetuses because maternal hyperglycemia results in infant hyperinsulinemia causing accelerated growth [1].


Macrosomia Gestational diabetes Shoulder dystocia Estimated fetal weight 


  1. 1.
    Gabbe SG, Niebyl JR, Simpson JL, Landon MB, Galan HL, Jauniaux ERM, Driscoll DA. Obstetrics: normal and problem pregnancies, chapter 39. 6th ed. Philadelphia: Elsevier; 2012.Google Scholar
  2. 2.
    American College of Obstetricians and Gynecologists. Practice bulletin no. 173: fetal macrosomia. Obstet Gynecol. 2016;128:e195–209.CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Kate C. Arnold
    • 1
  • Caroline J. Flint
    • 1
  1. 1.Department of OB/GYNUniversity of Oklahoma HSCOklahoma CityUSA

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