Education, Advocacy, Information & Support

Chromosome Disorder Outreach, Inc is a non-profit organization.

Founded, supported, and run by parents just like you, for over 31 years CDO has been supporting those born with rare chromosome and gene disorders. Help us continue this vital work. Alone we may go unnoticed, together our intensity cannot be missed.  #youarenotalone
Search our database of registered disorders.

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Find Information

Learn the basics with our Introduction to Chromosomes and Genetic & Medical Glossary.

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Make Connections

CDO’s unique algorithm provides matches for those with even the most complex disorders.

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Ask the Doctor

Ask our geneticist your technical questions and search our archived FAQs for more details.

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You are not alone


 Your generous donation expands ongoing research and our outreach programs. Individuals, families and medical professionals all provide vital information and help to raise awareness and understanding of rare chromosome disorders.


Show your support today!

Help us in our efforts to raise awareness of rare chromosome disorders by visiting our online store.

You are donating to : Chromosome Disorder Outreach, Inc, a 501(c)(3) non-profit organization.

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