Over the last two to three decades, there has been a 15-25 % increase in many countries in the number of women giving birth to large infant. Fetal macrosomia is associated with an increased risk of complications both for the mother and the newborn. In current obstetrics, the macrosomic fetus represents a frequent clinical challenge. The early detection and identification of the risks associated with fetal macrosomia is important to managing the pregnancies and at last the timing and mode of delivery. This article provides possibilities of ultrasound diagnosis throughout the pregnancy and investigates the effectiveness of fetal measurements in identifying the large fetus (Tab. 1, Ref. 24).