Intrauterine growth restriction (IUGR), also called fetal growth restriction or small for gestational age, is the term used when a baby measures smaller than expected for the gestational age. A baby is considered to have intrauterine growth restriction when the estimated weight of the baby falls under the 10th percentile, meaning that the baby weighs less than 90 percent of all other babies at the same gestational age. Intrauterine growth restriction is associated with prenatal diagnoses such as pentalogy of Cantrell and trisomy 18. 
Intrauterine growth restriction (IUGR)
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