Unusually flexible joints can be a sign of Ehlers-Danlos Syndrome (EDS), especially when combined with symptoms like joint pain, frequent dislocations, stretchy skin, or easy bruising. Doctors typically assess hypermobility using the Beighton score (a physical exam that measures joint flexibility) along with a detailed medical and family history; in some cases, genetic testing may be used for specific EDS types. While these tests are helpful, diagnosis can be complex and often relies on a combination of clinical findings rather than a single definitive test. If you’re experiencing persistent symptoms or complications, it’s important to seek medical evaluation, as early diagnosis can help manage symptoms and prevent further joint damage.