Life expectancy for people who have ankylosing spondylitis is the same as that of the general population, except for patients who have the most severe forms of the disease and for those who have complications. About one third of those with ankylosing spondylitis have severe disease, which reduces life expectancy. Racgp - Ankylosing Spondylitis An Update Ankylosing spondylitis outlook as is a progressive disease which means it worsens over time. Severe ankylosing spondylitis life expectancy . It occurs most frequently in white males 20 to 40 years old, although it can occur in children, too. Ankylosing spondylitis by itself does not reduce the life expectancy of a person, although some people may have other complications that if you can do that will reduce your life expectancy. The severity and complications of ankylosing spondylitis (as) can vary. In rare cases, people with severe ankylosing spondylitis may develop serious complications, including: A remission can last for...