Every child is different, but experts have a clear idea about the range of normal development from birth to age 5 — and signs that a child might have a developmental delay. Milestones are behavioral or physical checkpoints in children’s development as they grow. Remember — there is no penalty for being cautious about your growing child, and if there is a problem acting early can make all the difference.
For more information on developmental milestones, visit, https://childmind.org/guide/developmental-milestones/
