OverviewNormal development in a child such as crawling or walking is a developmental milestone. Each period of growth in a child is marked by developmental milestones up until the adolescent years.
Update Date 1/17/2011
Updated by: Jennifer K. Mannheim, ARNP, Medical Staff, Department of Psychiatry and Behavioral Health, Seattle Children's Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.