Your child’s speech and language development can be monitored, compared to, and contrasted against certain norms and expectations.
Developmental milestones include skills such as taking a first step, smiling for the first time, and waving "bye bye." They are markers set forth by early-childhood experts as a tool to measure a child’s growth.
Children reach milestones in how they play, learn, speak, behave, and move (crawling, walking, pointing, etc.). How your child plays, learns, speaks, and acts offers important clues about their early development.
When children continually miss their milestones, however, it is considered to be a “red flag” or indication that intervention may be needed to help them accelerate their development.