Down syndrome is a naturally occurring chromosomal condition present across all races, genders, and socioeconomic backgrounds. It occurs when a person has a full or partial extra copy of chromosome 21, which affects development in ways that are unique to every individual.

There are three types - Trisomy 21 (the most common, accounting for about 95% of cases), Translocation, and Mosaicism. People with Down syndrome may share some common characteristics, but each person has their own personality, strengths, and abilities.

With access to good medical care and community support, people with Down syndrome are living longer, healthier lives than ever before - many well into their 60s and beyond.

Learn More

We encourage you to explore these trusted resources for detailed information:

How to Talk About Down Syndrome

Use appropriate language when referring to any group of people. Correct terminology helps reduce prejudice, misconceptions, and stereotypes. This guide will help you when talking about Down syndrome.

Nolan & Ashlan want to answer your questions about Down Syndrome

It is Down syndrome

  • Down syndrome is named after John Langdon Down. He did not have Down syndrome, so it is not possessive (as in Down's). Outside of North America, some countries still refer to it as Down's syndrome.

Use Person-First Language

  • A person should not be defined by their disability. Emphasize the person first. For example, 'my friend has Down syndrome' or 'the child has Down syndrome, NOT 'the Down syndrome child.'

Be Positive

  • A person has Down syndrome. People with Down syndrome can lead fulfilling lives; they can go to university, get married, and have careers.

End the R-Word

The R-word is often used in every day speech in a derogatory, offensive, and hateful way. If you stop using it, you help promote the acceptance of people with all disabilities, including Down syndrome.

Unite Interactive