10 Ehlers Danlos Syndrome Symptoms
Reviewed: Dr. Gromatzky
Symptom #10: Hyperextensible Joints
Hyperextensible joints, hypermobility, or double jointedness refers to joints that can stretch more than normal. Good examples would be the ability to bend the thumb backwards to touch the wrist, putting the leg behind the head, and other actions usually seen performed by a contortionist. It can involve one or more joints in the body.
Hyperextensible joints are common and are estimated to affect 10 to 25 percent of the population. It occurs in disorders with connective tissue defects (Loeys-Dietz syndrome, Ehlers-Danlos syndromes, Marfan syndrome), abnormally shaped ends of a bone at a joint, and in those with abnormal joint proprioception.
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