Double-jointed corresponds to which condition?

• A. Hypermobility Spectrum Disorder
• B. Osteoarthritis
• C. Scoliosis
• D. Ankylosing spondylitis

Answer: (A)

Joint hypermobility, often described as being "double-jointed," means joints move beyond the normal range of motion due to lax connective tissue. When this hypermobility is present with symptoms such as joint pain or frequent soft-tissue problems but does not fit a specific connective tissue disorder, the pattern is labeled Hypermobility Spectrum Disorder. This category recognizes that some people have symptomatic hypermobility along a spectrum rather than a single defined disease.

Osteoarthritis is a degenerative wear-and-tear condition of joints. Scoliosis is a curvature of the spine. Ankylosing spondylitis is an inflammatory spine disease. None of these are defined primarily by joint hypermobility, which is why Hypermobility Spectrum Disorder is the best match for the term "double-jointed."