Developmental disabilities are a group of conditions due to an impairment in physical, learning, language, or behavior areas. About one in six children in the U.S. have one or more developmental disabilities or other developmental delays.
Developmental Disabilities Topics
Basics
Milestones, screening, causes and risk factors, and living with a disability.
Research & Tracking
What we’ve learned and CDC’s work.
Resource Center
Print or order free materials.
Links to Other Websites
Links to information from other organizations.
Specific Conditions
Information about specific types of developmental disabilities.
Articles
Scientific articles.
Multimedia & Tools
Videos, podcasts, and widgets.
About Us
Overview of CDC’s work.
Developmental Milestones
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Children reach milestones in how they play, learn, speak, behave, and move (for example, crawling and walking). Check out milestones by age:
Contact Us:
- Centers for Disease Control and Prevention
National Center on Birth Defects and Developmental Disabilities
Division of Birth Defects and Developmental Disabilities
1600 Clifton Road
MS E-87
Atlanta, GA 30333 - 800-CDC-INFO
(800-232-4636)
TTY: (888) 232-6348
New Hours of Operation
8am-8pm ET/Monday-Friday
Closed Holidays - cdcinfo@cdc.gov






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