Neuroimaging studies showed that there is abundant diffusion tensor imaging (DTI) research that has been done on older multiple sclerosis (MS) patients. By contrast, similar research is relatively sparse in young/pediatric MS patients. Our study is interested in discovering the effects of MS on young adult patients to see whether the same pattern as in older patients appears. Our results suggest that DTI diffusivity data provides insights in the pathophysiology of MS in young adults. Diffusivity data may serve as an imaging biomarker of early disease pathophysiology in MS.