Ehlers-Danlos syndrome (EDS) is a group of genetic disorders that affect connective tissues, which support the skin, bones, blood vessels, tissues, and organs. Connective tissues provide support for organs and hold some body parts in place. They are made up of two proteins: collagen and elastin. Ehlers-Danlos syndrome weakens these tissues by preventing the body from producing collagen properly. This means that connective tissues aren't as strong or supportive as they should be. Ehlers-Danlos syndrome affects the following connective tissues in the body:

Cartilage
Bones
Blood
Fat

Additionally, EDS affects skin tissue, joints, muscles, and blood vessels.