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 1/27/2013
Updated by: Jennifer K. Mannheim, ARNP, Medical Staff, Department of Psychiatry and Behavioral Health, Seattle Children's Hospital. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.