Ankylosing spondylitis

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Ankylosing spondylitis

Illustration showing ankylosing spondylitis

As ankylosing spondylitis worsens, new bone forms as part of the body's attempt to heal. The new bone gradually bridges the gap between vertebrae and eventually fuses sections of vertebrae together. Fused vertebrae can flatten the natural curves of your spine and force it into an inflexible, hunched posture.
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