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Ehlers-Danlos syndrome, classic type (cEDS) is a form of Ehlers-Danlos syndrome that affects the connective tissue and is characterized by skin hyperextensibility, widened atrophic scars and joint hypermobility.
Features include very common findings: Hyperextensible skin, Soft, doughy skin, Fragile skin, and Striae distensae and others; and common findings: Mild bone density loss (osteopenia), Poor wound healing, Low muscle tone (hypotonia), and Muscle weakness and others. 66 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Bones and joints | 7 | Generalized joint hypermobility, Mild bone density loss (osteopenia), Joint swelling |
Skin | 6 | Hyperextensible skin, Soft, doughy skin, Fragile skin |
Digestive system | 4 | Vomiting, Nausea, Gastroesophageal reflux |
Heart and blood vessels | 4 | Aortic root aneurysm, Abnormal heart valve physiology, Mitral valve prolapse |
Muscles | 3 | Low muscle tone (hypotonia), Muscle weakness, Muscle spasm |
Brain and nerves | 3 | Fatigue, Dilatation of the cerebral artery, Headache |
Arms and legs | 2 | Abnormal foot morphology, Limb pain |
Eyes | 1 | Abnormal cornea morphology |
Blood and immune system | 1 | Prolonged bleeding time |
Biomarker and diagnostic research for Ehlers-Danlos syndrome, classic type has been reported in the published literature.
Phenotype severity distribution: 7 very common features, 11 common features.
Estimated prevalence: 1-9 in 100,000 (Uncommon).
No clinical trials have been registered for Ehlers-Danlos syndrome, classic type.
21 publications have been identified in PubMed for Ehlers-Danlos syndrome, classic type. Research spans Basic Science / Preclinical (45%), Case Report / Case Series (20%), and Review / Meta-Analysis (10%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 9 | 45% |
Patient case studies | 4 | 20% |
Research summaries | 2 | 10% |
Clinical study results | 2 | 10% |
Disease patterns and progression | 2 | 10% |
Testing and diagnosis research | 1 | 5% |
Kumskova M (2026). [PMID: 41284637](https://pubmed.ncbi.nlm.nih.gov/41284637/). *Blood*. [Basic Science / Preclinical]
Bucarey SA (2026). [PMID: 41683375](https://pubmed.ncbi.nlm.nih.gov/41683375/). *Molecules (Basel, Switzerland)*. [Case Report / Case Series]
Tsujioka Y (2026). [PMID: 42094029](https://pubmed.ncbi.nlm.nih.gov/42094029/). *Mol Syndromol*. [Review / Meta-Analysis]
Zhao J (2026). [PMID: 41917426](https://pubmed.ncbi.nlm.nih.gov/41917426/). *Sci Rep*. [Basic Science / Preclinical]
Conconi R (2025). [PMID: 40554838](https://pubmed.ncbi.nlm.nih.gov/40554838/). *Ultramicroscopy*. [Basic Science / Preclinical]
Rostami S (2025). [PMID: 40989941](https://pubmed.ncbi.nlm.nih.gov/40989941/). *Plastic and reconstructive surgery. Global open*. [Case Report / Case Series]
Ritelli M (2025). [PMID: 39225014](https://pubmed.ncbi.nlm.nih.gov/39225014/). *American journal of medical genetics. Part A*. [Diagnostic / Biomarker]
van Gurp JE (2025). [PMID: 39807789](https://pubmed.ncbi.nlm.nih.gov/39807789/). *Clinical and translational gastroenterology*. [Epidemiology / Natural History]
Anand L (2025). [PMID: 41356277](https://pubmed.ncbi.nlm.nih.gov/41356277/). *Case reports in genetics*. [Basic Science / Preclinical]
Booij L (2025). [PMID: 40879253](https://pubmed.ncbi.nlm.nih.gov/40879253/). *The International journal of eating disorders*. [Case Report / Case Series]
Data assembled from 4 of 12 sources · Last updated Sep 20, 2026, 11:13 AM UTC
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