In a retrospectively reviewed series of 84 small for gestational age newborn (below less than P10), 45 were identified to be growth-retarded by routine prenatal care. Among 58 babies below less than P5, the diagnosis of IUGR was made in 62 per cent. Results of ultrasound measurements were below normal range in 55 per cent. Symphyseal-fundal distance was abnormal in 36 per cent. Both ultrasound and SF distance yielded abnormal results in 18 pregnancies, whereas normal results were seen in 10 women. In 8 pregnancies, either SF distance or ultrasound examination indicated IUGR. However, in 28 out of 39 patients, in which IUGR was not recognised during pregnancy, clinical findings and/or obstetrical history were positive.