Ankylosing Spondylitis is a type of arthritis. It affects areas on the lower back and spine where the muscles, tendons and ligaments attach onto bones. The condition’s name derives from its symptoms.

What is Ehlers-Danlos Syndrome (EDS)? It refers to a group of disorders that affect the body’s connective tissue. This includes the skin, ligaments, tendons and blood vessel walls. The point of these connective tissues is to provide strength and elasticity to other parts of the body. Children with EDS usually have overly flexible joints. They also can have fragile, stretchy skin.