Cellular and Molecular Mechanisms in the Pathogenesis of Classical, Vascular, and Hypermobile EhlersDanlos Syndromes Ehlers Danlos syndrome MEpedia Ehlers Danlos syndrome (EDS) is a group of 13 related genetic (heritable) connective tissue disorders. EDS, particularly the hypermobile type (hEDS), frequently overlaps with Postural Orthostatic Tachycardia Syndrome (POTS) and Mast Cell Activation Revenge of the gaslit patients: Now they're Ehlers Danlos scientists Ehlers Danlos Syndrome: Background, Pathophysiology, Etiology