🧬Learn all about genetic testing with Dr. Clair Francomano The Ehlers-Danlos syndromes (EDS) are a group of genetic connective tissue disorders. Each type of EDS is caused by pathogenic variants of genes that provide the instructions for making connective tissue proteins. Hypermobile EDS (hEDS) is the most common type of EDS, but the genetic cause(s) of hEDS are unknown. The other types of EDS are associated with specific pathogenic variants. Genetic testing is available for every type of EDS e