Ankylosing Spondylitis is a form of arthritis. It mainly affects the back, neck, hips, shoulders and feet.
The condition causes inflammation and pain of the joints.
The vertebrae may fuse together.
It can cause inflammation of the eye which can cause pain and redness.
Sufferers can develop Osteoporosis - which can make bones prone to fractures.
in rare cases the inflammation can attack the heart causing damage mainly to the major blood vessels.
Causes of Ankylosing Spondylitis are not known. It is thought it could be related to genes however not always passed through families.
Blood tests can tell if a person has the HLA-B27 gene which is thought to indicate a predisposition to Ankylosing Spondylitis although this is not a conclusive diagnosis.
As you can see from the limited information listed above there are lots of might be, thoughts about Ankylosing Spondylitis.
For further medical information and advice please visit the following sites
https://www.versusarthritis.org/about-arthritis/conditions/ankylosing-spondylitis/
https://nass.co.uk/