Global Developmental Delay

Global Developmental Delay (GDD) is a clinical term used by healthcare professionals when a child under the age of five takes longer to reach specific developmental milestones compared to other children their age.

It is important to note that "global" does not mean a child is struggling with absolutely everything; rather, it indicates that they are showing significant delays in two or more primary areas of development.

Written by Harrison (Harry) Hawkins
Last updated: April 2026