Milestones are developmental stages of a baby that start right after birth. Evidence-based information shows that children follow a sequence of growth stages in which a particular milestone is followed by another. Here, you will learn that science-based research requires that you should be vigilant in observing your baby’s milestones since they determine growth or the lack of it. Children do not follow similar patterns of milestones, e.g., your child may start by crawling while another one starts by sitting.  A milestone will also help any physician determine if there is any physical or developmental problem with your child.