This study is concerned about the recent advances in the investigation and management of small for gestational age fetuses which affects approximately 3-10% of all deliveries. FGR is associated not only with a marked increase risk in perinatal mortality and morbidity but also with long-term outcome risks. Combination of fetal biometry, amniotic fluid volume, heart rate patterns, arterial and venous Doppler, and biophysical variables allow a comprehensive evaluation of FGR. The aim of the obstetricians is to identify fetuses with early FGR so delivery can be planned according to gestational age and severity of the condition.