Hypermobile Ehlers-Danlos Syndrome
A connective-tissue disorder whose downstream effects span musculoskeletal, autonomic, gastrointestinal, and immune systems — and which almost never presents as a single, clean problem.
What we mean when we say hEDS.
hEDS is a heritable connective-tissue disorder characterized by joint hypermobility, tissue fragility, and a wide range of systemic features that extend well beyond the musculoskeletal system.
Unlike other forms of EDS, hEDS does not yet have a definitive genetic marker, and diagnosis relies on clinical criteria — a situation that has contributed to long diagnostic delays and inconsistent care.
Co-occurrence with POTS, MCAS, gastrointestinal dysmotility, and small fiber neuropathy is common enough that many researchers now consider hEDS a syndromic hub rather than an isolated joint condition.
The pattern we see in hEDS cases.
- 01Diagnostic criteria have evolved and continue to evolve; many patients have been assessed under older frameworks and never re-evaluated.
- 02The multi-system nature of hEDS means patients are usually seeing five or more specialists, none of whom are responsible for the integrated picture.
- 03Treatment evidence is uneven across domains — well developed for some features (joint stabilization), thinner for others (autonomic and mast-cell management) — and generalist clinicians often lack access to the specialist consensus.
- 04Surgical and procedural decisions in hEDS carry considerations that general guidelines don't account for, from tissue healing to anesthesia choices, and benefit from specialist review.
The Ternary Signal Library for hEDS.
Our Signal Library codifies the specific patterns that matter in hEDS — labs, genetic variants, imaging findings, symptom clusters, and comorbidity combinations. Your case is mapped against these signals in Stage 4 of the workflow; each activated signal is weighted and prioritized for your presentation.
- —Beighton score (current and historical)
- —2017 hEDS international criteria — all three domains
- —Family history pattern
- —Skin findings — elasticity, texture, scarring
- —Joint history — subluxations, dislocations, surgeries
- —POTS — autonomic testing
- —MCAS — symptom pattern + biomarkers
- —GI dysmotility — gastroparesis workup
- —Small fiber neuropathy
- —CSF leak history or risk factors
- —Craniocervical instability assessment
- —Thoracic outlet / TMJ involvement
- —Pelvic floor dysfunction
- —Spinal alignment and instability
- —Functional impact on daily activities
- —Physical therapy — hEDS-aware vs. general
- —Surgical history and outcomes
- —Medication trials for autonomic / pain / MCAS features
- —Bracing and joint-protection strategies
- —Response patterns per intervention
The Ternary Health approach to hEDS.
Review the full clinical picture — joint, autonomic, GI, dermatologic, neurologic — and integrate it against current specialist guidance.
Identify the most actionable subsystems for your specific presentation, rather than treating hEDS as a single monolithic diagnosis.
Map the specialist landscape and prepare you for consultations with clinicians who work with hEDS regularly.
Build an action plan that sequences interventions so you can evaluate what's working, with attention to the hEDS-specific considerations around surgery, physical therapy, and medication response.
How a hEDS case moves through our workflow.
Our nine-stage workflow is the same for every engagement. What changes per condition is the content at each stage — the records we pull, the signals we apply, the specialists we map, the pathways we evaluate. Below, how your case specifically would move through each stage.
What you receive.
- —A written case synthesis across all affected subsystems
- —An integrated view of co-occurring conditions (POTS, MCAS, GI, neuro)
- —Specialist identification for the subsystems most likely to advance your case
- —Pre-visit materials for each specialist consultation
- —A written action plan and follow-up support as you implement it
What prospective hEDS clients ask most.
Ready for a case review?
Applications are reviewed within three business days.