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Macrosomia

Macrosomia refers to a very large body size. It is often used to describe an oversized fetus.

Information

The most common cause of macrosomia is diabetes in the mother. Macrosomia can lead to injury during birth and a greater chance of a cesarean delivery (C-section).

References

Blickstein I, Perlman S, Hazon Y, Shinwell ES. Pregnancy complicated by diabetes mellitus. In: Martin RJ, Fanaroff AA, Walsh MC, eds. Fanaroff and Martin's Neonatal-Perinatal Medicine. 11th ed. Philadelphia, PA: Elsevier; 2020:chap 18.

Richards DS. Obstetric ultrasound: imaging, dating, growth, and anomaly. In: Landon MB, Galan HL, Jauniaux ERM, et al, eds. Gabbe's Obstetrics: Normal and Problem Pregnancies. 8th ed. Philadelphia, PA: Elsevier; 2021:chap 9.

Simmons R. Abnormalities of fetal growth. In: Gleason CA, Juul SE, eds. Avery's Diseases of the Newborn. 10th ed. Philadelphia, PA: Elsevier; 2018:chap 6.

  • Macrosomia

    Macrosomia - illustration

    Macrosomia is the condition of having an unusually large body. The body is in proportion, with the extremities and head also enlarged. Disorders that include this condition are gigantism and acromegaly.

    Macrosomia

    illustration

    • Macrosomia

      Macrosomia - illustration

      Macrosomia is the condition of having an unusually large body. The body is in proportion, with the extremities and head also enlarged. Disorders that include this condition are gigantism and acromegaly.

      Macrosomia

      illustration

     

    Review Date: 10/2/2019

    Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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