Each developmental. Domain has a range of ages at which typically-developing infants & toddlers reach expected milestones. Screening for these is on firstsigns. Org. Not attaining a milestone by the age at which 90% of children do so is a delay. The trajectory of development over time is more important than reaching a milestone at a single point in time. Developmental surveillance is, therefore, recommended by the AAP.
DEVELOPMENTAL DELAY. As the child is growing up, developmental milestone is being observed and associated with other sx before DX of delay is made. Your peds will allert you if there's a problem.
Obvious. It simply means that an infant is not meeting developmental landmarks, e.g. Sitting up, crawling, walking, speech etc.
Lack of advances. Motor delay can be fine and/or gross motor delay, and gets evaluated at every pe. It starts with the baby not reaching for things, not holding their head up, and as they get older, the child will not manipulate objects well and will not stand or walk. Definitely a concern!
No progress. Initially the infant will not grasp things, will not use a pincer grasp to hold objects, then they won't turn pages of a book well, and will not hold a crayon or pencil properly, and the older child will not do delicate tasks or write well.
When an infant or. Toddler has not yet attained milestones that have been met by 90% of typically-developing infants his age, he has a significant delay. Babies attain objects with an ulnar-palmar grasp at 4 mos. By 7 mos. They have a "scissors grasp", At 9-10 mos. They start using a pincer grasp, refined by 12 mos. At 10 mos. They release a raisin into a bottle. Self-help skills are impacted by a fine motor delay.