The aim of this study is to show the significant submitting in ultrasound control after the biophysical embryonic profile of 32th gestational week, in order to restrict perinatal mortality. During preliminary examination to discover the cause of a newborn death which was born at 40th gestational week with weight 2.606 gr. Its mother was smoker (10-12 cigarettes/day) for more 12 years until the moment she knew that she was pregnant. The ultrasound control at 12th, 26th and 32th gestational week and the electrotococardiography examination during the pregnancy and during birth was normal. The parturient who had submitted epidural analgesia, gave birth after 8 hours. The delivery was not laborious and the woman’s clinical condition during birth was always stable. After newborn’s birth it was apneic, pallid and without reflexes. In toxicological analysis was not found toxic substances or drugs in newborn’s blood. Histological examination showed cerebral edema with meninges’, level’s, spleen’s, reins’ and adrenal’s congestion. At pulmonary level was found alveoli’s partial expansion. The placenta was not sent to examination. The conclusion of forensic report was that the newborn was born alive and died by perinatal asphyxia. Comparing the expecting newborn’s weight and its weight of birth, we evaluated the development’s curves and were found statistical significant deference between the newborn’s weight and the expecting birth weight. The baby was suffering growth retardation due of placenta’s pathology. In case of ultrasound control after 32th gestational week, the intrauterine hypoxia probably would have discovered and baby would be survived if it was born 2 or 3 weeks ago by caesarean.