In the United States, about 1 in 6 children have a developmental disability. Developmental disabilities are a diverse group of severe chronic conditions that are due to mental and/or physical impairments. People with developmental disabilities have problems with major life activities such as language, movement, learning, self-help, and living by themselves. These disabilities can begin anytime during development up to age 22. Developmental disabilities usually last throughout a person's lifetime.
The specific cause of most developmental disabilities is unknown. They may result from an interaction between genetic, environmental, and social factors. Many developmental disabilities are inherited and cannot be prevented. But some can be prevented or lessened by having a healthy pregnancy, by detecting and treating conditions early, and by preventing harmful exposures and injuries.
This symbol means you are leaving the CDC.gov Web site. For more information, please see CDC's Exit Notification and Disclaimer policy.
Copyrighted images: Images on this website which are copyrighted were used with permission of the copyright holder and are not in the public domain. CDC has licensed these images for use in the materials provided on this website, and the materials in the form presented on this website may be used without seeking further permission. Any other use of copyrighted images requires permission from the copyright holder.
Tracking Hot Topics
- Consumer's Guide to Radon Reduction
- EPA's Map of Radon Zones
- 28 Days to a Healthier Heart
- Go Red for Women — How to Prevent Heart Disease
- Heart Health and Air Pollution Toolkit
- What You Can Do to Prevent Heart Disease
- Tracking Fellowship Milestone
- View our Tracking Success Stories to learn how Tracking is making a difference across the U.S.