U.S. National Library of MedicineNational Institutes of Health
Skip navigation
MedlinePlus Trusted Health Information for You MedlinePlus Trusted Health Information for You MedlinePlus Trusted Health Information for You
Contact Us FAQs Site Map About MedelinePlus
español

Printer-friendly version E-mail this page to a friend
Illustration of chromosomes and DNA
  • Related Topics

  • Go Local

    • Services and providers for Developmental Disabilities in the U.S.
  • National Institutes of Health

Developmental disabilities are birth defects that cause lifelong problems with how a body part or system works. They include

  • Nervous system disabilities affecting how the brain, spinal cord and nervous system function. They cause mental retardation, including Down syndrome and fragile X syndrome. They also cause learning and behavioral disorders, such as autism
  • Sensory-related disabilities, which can cause vision, hearing and sight problems
  • Metabolic disorders such as phenylketonuria, which affect how your body processes the materials it needs to function
  • Degenerative disorders such as Rett syndrome, which might only become apparent when children are older and can cause physical and mental problems

Most developmental disabilities have no cure, but you can often treat the symptoms. Physical, speech and occupational therapy might help. Special education classes and psychological counseling can also help.

National Institute of Child Health and Human Development

Start Here