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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).

Images

References

Blickstein I, Perlman S, Hazon Y, Topf-Olivestone C, Shinwell ES. Diabetes mellitus during pregnancy. In: Martin RJ, Fanaroff AA, Walsh MC, eds. Fanaroff and Martin's Neonatal-Perinatal Medicine: Diseases of the Fetus and Infant. 10th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 19.

Richards DS. Obstetric ultrasound: imaging, dating, growth, and anomaly. In: Gabbe SG, Niebyl JR, Simpson JL, et al, eds. Obstetrics: Normal and Problem Pregnancies. 7th ed. Philadelphia, PA: Elsevier; 2017:chap 9.

Review Date 10/18/2017

Updated 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.