As such it has been estimated that the distribution of number of cases of MS around the world is very uneven. On an average, worldwide reported cases of MS are more than 25 million. Researchers have also deciphered that the proportion of women with MS is increasing to the extent that approximately two to three women have MS for every man with the similar condition.
The study of geographical distribution has revealed that the parts of Asia, Africa and America on the equator have low evidences of the cases as compared to Canada as well as Scotland; bearing very high incidences. In fact, the MS being more common in northern Europe, North America, Australia, and New Zealand; it is believed that the MS has been carried around the world by Europe. The Multiple Sclerosis is indeed a well understood disease of temperate climates.