Hypermobile Ehlers-Danlos Syndrome, also known as ehlers-danlos syndrome hypermobility type, is related to ehlers-danlos syndrome, kyphoscoliotic type, 2 and familial thoracic aortic aneurysm and dissection. An important gene associated with Hypermobile Ehlers-Danlos Syndrome is COL1A1 (Collagen Type I Alpha 1 Chain), and among its related pathways/superpathways are Signal Transduction and Integrin Pathway. The drugs Prednisolone and Prednisolone acetate have been mentioned in the context of this disorder. Affiliated tissues include skin and bone, and related phenotypes are fatigue and acrocyanosis