Individuals with Ehlers-Danlos syndromes (EDS) have a genetic defect in their connective tissue, the tissue that provides support to many body parts such as the skin, muscles and ligaments. The fragile skin and unstable joints found in patients with EDS are the result of faulty or reduced amounts of collagen. Collagen is a protein, which acts as a “glue” in the body, adding strength and elasticity to connective tissue.
EDS is a heterogeneous group of heritable connective tissue disorders, characterized by articular (joint) hypermobility, skin extensibility and tissue fragility. There are six major types of EDS. The different types of EDS are classified according to their manifestations of signs and symptoms. Each type of EDS is defined as a distinct disorder that “runs true” in a family. This means that an individual with Vascular Type EDS will not have a child with Classical Type EDS.