HSD was created as the residual category beside hEDS
findingevidence: established
The 2017 framework (Castori et al.) separated symptomatic joint hypermobility into hEDS when the strict criteria are met and HSD when they are not. The boundary is contested. The criteria were designed to define a more uniform group for research, not to declare HSD benign, and the hEDS/HSD criteria review study is ongoing.
Not medical advice. This page summarizes research and does not recommend any course of care.
| EDS types | HSD, hEDS |
|---|---|
| Date | 2017-03 |
| Diagnostic criteria | 2017 International Classification |
| Last checked | 2026-09-16 |
Evidence
clinicalconsensus statement
clinicalcross-sectional study
The 2025 German survey groups hEDS and HSD together because their features overlap.