Subtype

Classical Ehlers-Danlos syndrome (cEDS)

The archetypal skin-predominant type. Molecular confirmation via COL5A1/COL5A2 identifies the large majority of cases meeting clinical criteria.

Not medical advice. This page summarizes research and does not recommend any course of care.
Classification2017 International Classification
Inheritanceautosomal dominant
GenesCOL5A1, COL5A2
Genetic statusconfirmed genes
Villefranche (1997)EDS types I and II
PrevalenceEstimated around 1 in 20,000 to 1 in 40,000
Distinguishing featuresSkin hyperextensibility with widened atrophic scars, generalized joint hypermobility, easy bruising
Last checked2026-09-16

Records about cEDS

  • Patients share ways to manage joints that partly slip out of place

    patient-reported patternevidence: community signal

    Much of the practical discussion in patient communities is about joints that partly slip out of place (subluxation) rather than fully dislocate. Members swap taping, bracing, and stabilizing techniques, often for subluxations no doctor has confirmed.

    hEDS, HSD, cEDS · Community knowledge

  • Craniocervical instability and tethered cord in hEDS: contested

    findingevidence: contestedindependent evidence agrees

    Craniocervical instability (CCI) and tethered cord come up often in patient communities, and cervical instability was one of the diagnoses participants most often endorsed as accurate in a Global Registry survey of people with hEDS. Controlled evidence is limited, and surgery for these conditions carries real risk.

    hEDS, cEDS · Comorbidities and systemic features

  • Rauterberg and colleagues found that pain was the complaint most often reported to severely affect daily activities at a German EDS clinic. Their 2025 paper surveyed 99 adults attending University Hospital Cologne, including 80 with hEDS or HSD, 16 with classical EDS, and three with classical-like EDS. Of the 98 who answered the daily-activity question, 59 reported musculoskeletal pain (60.2%), 38 joint instability (38.8%), 36 other orthopedic problems (36.7%), 35 digestive complaints (35.7%), and 32 fatigue (32.7%). Respondents could name more than one complaint. These figures describe one specialist clinic.

    hEDS, HSD, cEDS, clEDS · 2025 · Patient experience and diagnostic odyssey

  • Rauterberg and colleagues found that 32 of 98 adults at a German EDS clinic reported fatigue severely affecting daily activities (32.7%). The 2025 study included people with hEDS, HSD, classical EDS, and classical-like EDS. Within the hEDS/HSD group, 27 of 80 respondents reported this level of fatigue (33.8%). Fatigue is not one of the 2017 hEDS diagnostic criteria.

    hEDS, HSD, cEDS, clEDS · Patient experience and diagnostic odyssey

Records that apply to every EDS type

Sources