EDS Info Ehlers Danlos Syndromes Aotearoa New Zealand Could a vitamin deficiency cause 'double jointedness' and hypermobile Ehlers Danlos syndrome? The Global Biobank event was a touching and memorable experience The Ehlers Danlos Society 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 Kyphoscoliotic Ehlers Danlos syndrome (kEDS) is a rare type of EDS and symptoms include muscle hypotonia, kyphoscoliosis which is congenital or early onset, as well as generalised joint hypermobility. kEDS is caused by Ehlers Danlos syndrome MEpedia