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Ehlers Danlos Syndrome

It is possible that the main title of the report Ehlers Danlos Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.


  • E-D Syndrome
  • EDS

Disorder Subdivisions

  • Ehlers Danlos syndrome, classic type
  • Ehlers Danlos syndrome, hypermobility type
  • Ehlers Danlos syndrome, vascular type
  • Ehlers Danlos syndrome, kyphoscoliotic type
  • Ehlers Danlos syndrome, arthrochalasia type
  • Ehlers Danlos syndrome, dermatosparaxis type
  • Ehlers Danlos syndrome, progeroid form
  • Ehlers Danlos syndrome, cardiac valvular form

General Discussion

Ehlers-Danlos syndrome (EDS) is a group of hereditary connective tissue disorders characterized by defects of the major structural protein in the body (collagen). Collagen, a tough, fibrous protein, plays an essential role in holding together, strengthening, and providing elasticity to bodily cells and tissues. Due to defects of collagen, primary EDS symptoms and findings include abnormally flexible, loose joints (articular hypermobility) that may easily become dislocated; unusually loose, thin, stretchy (elastic) skin; and excessive fragility of the skin, blood vessels, and other bodily tissues and membranes.

The different types of EDS were originally categorized in a classification system that used Roman numerals (e.g., EDS I to EDS XI), based upon each form's associated symptoms and findings (clinical evidence) and underlying cause. A revised, simplified classification system (revised nosology) has since been described in the medical literature that categorizes EDS into six major subtypes, based upon clinical evidence, underlying biochemical defects, and mode of inheritance.

Each subtype of EDS is a distinct hereditary disorder that may affect individuals within certain families (kindreds). In other words, parents with one subtype of EDS will not have children with another EDS subtype. Depending upon the specific subtype present, Ehlers-Danlos syndrome is usually transmitted as an autosomal dominant or autosomal recessive trait.


Ehlers-Danlos National Foundation
1760 Old Meadow Road, Suite 500
McLean, VA 22102
Tel: (703)506-2892
Fax: (703)506-3266

NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases
Information Clearinghouse
One AMS Circle
Bethesda, MD 20892-3675
Tel: (301)495-4484
Fax: (301)718-6366
Tel: (877)226-4267
TDD: (301)565-2966

Coalition for Heritable Disorders of Connective Tissue (CHDCT)
4301 Connecticut Avenue, NW Suite 404
Washington, DC 20008
Tel: (202)362-9599
Fax: (202)966-8553
Tel: (800)778-7171

Ehlers-Danlos Support Group UK
PO Box 748
Borehamwood, WD6 9HU
United Kingdom
Tel: 02087365604

Ehlers Danlos Foundation of New Zealand
368 Butler Road, RD 3
Waipawa 4273
Hawkes Bay,
New Zealand
Tel: 64068747799
Fax: 64068747799

EDS Today
PO Box 1382
Mays Landing, NJ 08330
Tel: (609)625-3182

Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
TDD: (888)205-3223

Madisons Foundation
PO Box 241956
Los Angeles, CA 90024
Tel: (310)264-0826
Fax: (310)264-4766

European Skeletal Dysplasia Network
Institute of Genetic Medicine
Newcastle University
International Centre for Life
Central Parkway
Newcastle upon Tyne, NE1 3BZ
United Kingdom
Tel: 441612755642
Fax: 441612755082

For a Complete Report:

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site or email

Last Updated: 10/2/2008
Copyright 1986, 1987, 1990, 1991, 1992, 1996, 1997, 1998, 1999, 2000, 2002, 2007 National Organization for Rare Disorders, Inc.

WebMD Medical Reference from the National Organization for Rare Disorders

Last Updated: May 28, 2015
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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