Fetal macrosomia is a medical term that means fetal weight at birth is greater than 4000 grams (8 lbs. 13 oz). Compared to the size of other newborns of the same gestational age, this is considered excessive fetal growth. Your doctor will be concerned with the baby’s probable weight at delivery for a few reasons and should want more testing to be done.
Fetal macrosomia is a serious condition in pregnancy. It is well recognized in the medical literature that a major concern in the delivery of a macrosomic baby is shoulder dystocia and the attendant risks of permanent brachial plexus palsy. It requires close monitoring and frequent visits to the doctor’s office. But the reward is a healthier baby at delivery and sometimes a healthier mother, too.