Ankylosing spondylitis is a type of arthritis with cumulative effects on the spine, particularly the points where tendons and ligaments attach to bone. Learn how AS develops and progresses.
Ankylosing spondylitis (AS) is a type of arthritis that primarily affects the spine. The disease is characterized by inflammation in the joints along the spine, causing stiffness, pain, and often the fusing together of several bones in the spine. The knee and shoulder joints may also be affected.
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After the emergence of the first ankylosing spondylitis symptoms, inflammation and calcification can continue progressing up the spine without treatment.
What Is Ankylosing Spondylitis?
Physician reviewed symptoms and treatment information for Ankylosing Spondylitis (AS), a type of arthritis that affects the spine, shoulders, and knees.