DEAR DOCTOR K: This may be a silly question, but here goes: Do people who are “double-jointed” have twice as many joints? DEAR READER: I can see how you might think that. If the question is silly it’s ...

A prospective study by U.K. researchers found that adolescents who are double-jointed-- medically termed joint hypermobility -- are at greater risk for developing musculoskeletal pain as they get ...

Marco Arkesteijn does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Background Joint hypermobility in athletes is associated with increased risk of knee injuries, but currently it is unclear if joint hypermobility is associated with increased risk of shoulder injuries ...

Shoulder instability occurs when the arm’s ball joint moves in and out of the shoulder socket joint. Chronically unstable shoulders can lead to loose shoulder joints that slip out of place repeatedly.

Many people have heard the term shoulder instability but have wondered what that means. So, what is shoulder instability? Many structures are responsible for stabilizing your shoulders. This includes ...

Your shoulder is a ball and socket joint and very mobile. It may hurt for many reasons, from injury and overuse to chronic conditions or diseases. You need to know the cause to get effective treatment ...