Ehlers-Danlos syndrome (EDS) is a group of inherited disorders. These disorders affect the connective tissues. This type of tissue is found all over the body. There are at least six different varieties of EDS. They are classified by the type of tissue most affected and how it is inherited.

EDS is caused by a problem in the genetic material. It mainly affects the genes that create connective tissue.

Most types of EDS affect the production of collagen. Collagen is an important part of connective tissue. It gives the tissue strength and allows it to stretch.