[Intrauterine growth restriction: a pathology for which there is a medical solution].

The diagnosis of fetal well being is an acquisition of the last decades. Today, using ultrasound, the mothers' abdominal wall has become "transparent", allowing a real study of the fetus: evaluation of fetal weight, heart and muscle activity and fetal adnexae. The ultrasound study can be considered an examination of the fetus as an intrauterine patient, not of the mother and the purpose of modern obstetrics is to ensure the well-being of both of them. Flow velocity study with Doppler ultrasound has the purpose to evaluate the feto-placental, utero-placental and fetal blood flow and sometimes blood flow redistribution. The authors present the case of a 25 year old patient to whom the decision of C-section was based on clinical and sonographic elements. Ending the pregnancy before term allowed the saving of a baby condemned to death "in utero", in the absence of these new acquisitions in obstetrics ultrasound.