Ehlers-Danlos syndrome is a group of inherited disorders that affect connective tissue, the tissue that binds and supports the body's muscles, ligaments, organs, and skin. The arthrochalasia type is characterized by very loose joints and dislocations involving both hips. This type of Ehlers-Danlos syndrome combines the types formerly called VIIA and VIIB. Ehlers-Danlos syndrome, arthrochalasia type is a subtype of Ehlers-Danlos syndrome. This form of Ehlers-Danlos syndrome mainly affects the joints and skin. Infants are born with dislocations of both hips and an unusually large range of joint movement (called hypermobility). Hypermobility causes both large and small joints to be unstable and to dislocate frequently. Infants with hypermobile joints often appear to have weak muscle tone, which can make them seem "floppy." Hypermobile joints can delay the development of motor skills such as standing and walking. People with the disorder have soft, velvety skin that is moderately stretchy, fragile, and prone to bruising but does not usually scar abnormally. Other symptoms include early-onset arthritis and an increased risk of bone loss and fracture.