When a baby spends so much time lying on his or her back, plagiocephaly occurs. It has no impact on a baby’s growth or causes brain damage. When looking at a baby’s head from above, it can be most visible. On the flat side, the cheekbone and ear can appear pushed forward. A moulded helmet may be needed if the condition does not improve by the age of four months.Baby flat head usually not a problem if taken care of early.