Developmental Delay: A developmental delay is any significant lag in a child's physical, cognitive, behavioral, emotional, or social development, in comparison with norms. The term developmental delay refers to when a child does not achieve developmental milestones within the normal age range. Developmental delay is usually initially noticed by parents or health visitors, and will then need to be assessed in order to ascertain which milestones they are missing. The child may only be delayed in one area of development, such as gross or fine motor, or in more than one. Developmental screening can be done by a trained healthcare professional, in which they will play with the child to see how they speak, move, and respond. If this indicates a delay, the child should then be assessed with a developmental evaluation, done by a highly trained professional such as a developmental psychologist or paediatrician, or a paediatric neurologist. The specific managemen