Ankylosing Spondylitis or “Bamboo Spine “is a kind of arthritis which affects our spine, bone-joints, tendons and eyes. Ankylosing Spondylitis is an autoimmune axial -skeleton disease, that causes the vertebrae in your spine to fuse together. The fusion makes the spine less flexible and result in inflammation at the area. Men are more prone to Ankylosing Spondylitis than women, and it usually occurs between the ages of 15 and 30.