Spondylitis is a name for a group of diseases that primarily affects the spine, causing inflammation in the spine that can result in chronic pain and debilitation. The most common disease in this group is ankylosing spondylitis an autoimmune disease. Cells in the immune system cause the inflammation in the spine and the joints between the vertabrae.
This a comparison of a normal spine and ankylosing spondylitis affected spine.
Your eye turns blood shot when you have ankylosing spondylitis
This is the difference in the lower spine.
People 19 And over are most likely to get it.
There is no known specific cause. There is no cure for it. 200,000 to 3,000,000 are likely to get it. Mostly men get it we don't know why yet.