The impact of normal delivery on the size of the fetal head on the mother and baby. Normal delivery is a very common method of delivery, but due to the different physical conditions of the mother and baby, sometimes the fetal head will be larger. This situation will have some effects on the mother and the baby. The following will elaborate on the impact of fetal head size on both maternal and infant aspects. Effects on the mother: An excessive fetal head will put a certain amount of pressure on the mother\’s vagina and pelvis. Especially when shoulder dystocia occurs, it will increase the probability of the mother suffering from birth canal damage. Some mothers are unable to bear the pain during delivery