What is loose jointed? Is it hereditary?

Ehlers-Danlos Syndro. Ehlers-danlos syndrome with l-loose joints is due an inherited disorder related to an abnormal gene from either mother or father. The disorder result in loose joints, elastic skin, easy bruising, and even heart valve problems, depending on which area the tissues are affected. The diagnosis is made by clinical examination. Skin biopsy and gene studies are also used.