A new study reports that either large for gestational age (LGA) or small for gestational age (SGA) fetal growth abnormalities are associated with an increased risk of stillbirth. The population-based case–control study analyzed all stillbirths (n = 527) and a representative sample of singleton live births (n = 1,821) in 59 hospitals across five geographic areas of the USA. The severity of SGA or LGA abnormalities during pregnancy (<5th and >95th growth percentiles, respectively) increased the risk of stillbirth in the sample analysed.