The pains that ankylosing spondylitis causes may occur in any part of the body where tendons connect to a bone. This inflammatory pain often develops slowly over a period of years, although at times it can flare up suddenly. The symptoms may lessen or worsen as time passes. Sometimes these pains come on after a period of rest, or they may wake the patient up at night. In the mildest cases, it is barely noticeable, but in the most severe incidents, the pain makes it extremely painful to bend, turn around or perform other movements regularly made with little thought. Teenagers don't normally experience pain in their lower backs, so when it occurs, an immediate medical referral is crucial.
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