Prevalence of multiple sclerosis has increased across many regions of the globe since 1990


  • In 2016, estimates suggested a total of 2.2 million cases of multiple sclerosis (MS) worldwide, with the prevalence being 10.4% higher than in 1990.

Why this matters

  • MS is the most common inflammatory neurologic disease in young adults, and significant gradients in prevalence and incidence exist across different regions of the world.