Multiple sclerosis (MS) is an immune-mediated chronic inflammatory disorder of the central nervous system (CNS) often causing disability in young adults. As is the case with the majority of autoimmune diseases, multiple sclerosis patients are predominantly women - 2.5 times more often than men. [1-4, 13] Considering the fact that the disease onset mainly occurs in childbearing age, it becomes clear why so much attention has been recently given to the possibility of pregnancy for patients with multiple sclerosis.