Small for gestational age (SGA)
Small for gestational age (SGA) means a developing baby in the womb or an infant is smaller in size than normal for the baby's gender and gestational age
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Alternative Names
Low birth weight
Information
Ultrasound is used to find out if a developing baby (fetus) is smaller than normal for age (intrauterine growth restriction). The most widely used definition of SGA is birth weight below the 10th percentile.
A developing baby with intrauterine growth restriction will be small in size and can have problems such as:
References
Carlo WA. Prematurity and intrauterine growth restriction. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 91.2.
Updated: 8/12/2011
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.