Ankylosing spondylitis does not cause laryngitis. Ankylosing spondylitis can affect the skeletal system, including the ligaments and small joints, as well as other systems, including the visual system and the heart, but it does not cause laryngitis. Ankylosis occurs in young people, more in men than in women, and it has a genetic basis. It usually starts in the sacroiliac joint and progresses upward, eventually developing into a full spine, which can form a typical kyphotic deformity.