National Ankylosing Spondylitis Society
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About AS

Ankylosing spondylitis (AS) is a form of arthritis. It mainly affects the lower back. Other joints and other parts of the body are sometimes affected.

The links below answer the questions people with AS most frequently ask and contain practical advice on things that will help you manage the condition more easily:

  • Bath Indices (a set of measurements used by rheumatology professionals to assess disease activity in patients)

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